# Security Announcements

**URL:** https://discuss.elastic.co/c/announcements/security-announcements/31.md?no_subcategories=false

[Latest](https://discuss.elastic.co/latest.md) · [Categories](https://discuss.elastic.co/categories.md) · [Tags](https://discuss.elastic.co/tags.md)

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## [About the Security Announcements category](https://discuss.elastic.co/t/about-the-security-announcements-category/2060)

<div class="topic-metadata">

**Author:** [@Leslie\_Hawthorn](https://discuss.elastic.co/u/Leslie_Hawthorn)\
**Replies:** 0\
**Last updated:** [June 6, 2015, 11:59am UTC](https://discuss.elastic.co/t/about-the-security-announcements-category/2060 "2015-06-06T11:59:59Z")

</div>

Security announcements for the Elastic stack. To report a security vulnerability, please follow the instructions on our Security Issues page. Posting to this category is restricted to staff only.

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## [Elastic Maps Server 8.19.24, 9.4.9, 9.5.6 Security Update (ESA-2026-238)](https://discuss.elastic.co/t/elastic-maps-server-8-19-24-9-4-9-9-5-6-security-update-esa-2026-238/391375)

<div class="topic-metadata">

**Author:** [@Bryan\_Garcia](https://discuss.elastic.co/u/Bryan_Garcia)\
**Replies:** 0\
**Last updated:** [November 3, 2026, 4:34pm UTC](https://discuss.elastic.co/t/elastic-maps-server-8-19-24-9-4-9-9-5-6-security-update-esa-2026-238/391375 "2026-11-03T16:34:16Z")

</div>

Out-of-bounds Write in Elastic Maps Server Leading to Remote Code Execution Out-of-bounds Write (CWE-787) in the Brotli decoder used by the Node.js runtime, a dependency of Elastic Maps Server (Dependency on Vulnerable …

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## [Multiple Elastic Docker images 8.19.24, 9.4.9, 9.5.6 Security Update (ESA-2026-237)](https://discuss.elastic.co/t/multiple-elastic-docker-images-8-19-24-9-4-9-9-5-6-security-update-esa-2026-237/391374)

<div class="topic-metadata">

**Author:** [@Bryan\_Garcia](https://discuss.elastic.co/u/Bryan_Garcia)\
**Replies:** 0\
**Last updated:** [November 3, 2026, 4:33pm UTC](https://discuss.elastic.co/t/multiple-elastic-docker-images-8-19-24-9-4-9-9-5-6-security-update-esa-2026-237/391374 "2026-11-03T16:33:53Z")

</div>

Improper Certificate Validation in Elastic Docker Images Leading to Interception of TLS Connections Improper Certificate Validation (CWE-295) in the operating system certificate bundle shipped in the Docker images of A…

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## [APM Server 8.19.24, 9.4.9, 9.5.6 Security Update (ESA-2026-236)](https://discuss.elastic.co/t/apm-server-8-19-24-9-4-9-9-5-6-security-update-esa-2026-236/391373)

<div class="topic-metadata">

**Author:** [@Bryan\_Garcia](https://discuss.elastic.co/u/Bryan_Garcia)\
**Replies:** 0\
**Last updated:** [November 3, 2026, 4:33pm UTC](https://discuss.elastic.co/t/apm-server-8-19-24-9-4-9-9-5-6-security-update-esa-2026-236/391373 "2026-11-03T16:33:30Z")

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Allocation of Resources Without Limits or Throttling in APM Server Leading to Denial of Service Allocation of Resources Without Limits or Throttling (CWE-770) in APM Server can lead to denial of service via Oversized Se…

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## [Elasticsearch 8.19.24, 9.4.9, 9.5.6 Security Update (ESA-2026-235)](https://discuss.elastic.co/t/elasticsearch-8-19-24-9-4-9-9-5-6-security-update-esa-2026-235/391372)

<div class="topic-metadata">

**Author:** [@Bryan\_Garcia](https://discuss.elastic.co/u/Bryan_Garcia)\
**Replies:** 0\
**Last updated:** [November 3, 2026, 4:33pm UTC](https://discuss.elastic.co/t/elasticsearch-8-19-24-9-4-9-9-5-6-security-update-esa-2026-235/391372 "2026-11-03T16:33:07Z")

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Allocation of Resources Without Limits or Throttling in Elasticsearch Leading to Denial of Service Allocation of Resources Without Limits or Throttling (CWE-770) in Elasticsearch can lead to denial of service via a spec…

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## [Elastic Agent 8.19.24, 9.4.9, 9.5.6 Security Update (ESA-2026-234)](https://discuss.elastic.co/t/elastic-agent-8-19-24-9-4-9-9-5-6-security-update-esa-2026-234/391371)

<div class="topic-metadata">

**Author:** [@Bryan\_Garcia](https://discuss.elastic.co/u/Bryan_Garcia)\
**Replies:** 0\
**Last updated:** [November 3, 2026, 4:32pm UTC](https://discuss.elastic.co/t/elastic-agent-8-19-24-9-4-9-9-5-6-security-update-esa-2026-234/391371 "2026-11-03T16:32:44Z")

</div>

Out-of-bounds Write in Elastic Agent Leading to Remote Code Execution Out-of-bounds Write (CWE-787) in the Brotli decoder of Node.js, a dependency of Elastic Agent (Dependency on Vulnerable Third-Party Component, CWE-13…

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## [Heartbeat 8.19.24, 9.4.9, 9.5.6 Security Update (ESA-2026-233)](https://discuss.elastic.co/t/heartbeat-8-19-24-9-4-9-9-5-6-security-update-esa-2026-233/391370)

<div class="topic-metadata">

**Author:** [@Bryan\_Garcia](https://discuss.elastic.co/u/Bryan_Garcia)\
**Replies:** 0\
**Last updated:** [November 3, 2026, 4:32pm UTC](https://discuss.elastic.co/t/heartbeat-8-19-24-9-4-9-9-5-6-security-update-esa-2026-233/391370 "2026-11-03T16:32:21Z")

</div>

Out-of-bounds Write in Heartbeat Leading to Remote Code Execution Out-of-bounds Write (CWE-787) in the Brotli decoder of Node.js, a dependency of Heartbeat (Dependency on Vulnerable Third-Party Component, CWE-1395), cou…

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## [Kibana 8.19.24, 9.4.9, 9.5.6 Security Update (ESA-2026-232)](https://discuss.elastic.co/t/kibana-8-19-24-9-4-9-9-5-6-security-update-esa-2026-232/391369)

<div class="topic-metadata">

**Author:** [@Bryan\_Garcia](https://discuss.elastic.co/u/Bryan_Garcia)\
**Replies:** 0\
**Last updated:** [November 3, 2026, 4:31pm UTC](https://discuss.elastic.co/t/kibana-8-19-24-9-4-9-9-5-6-security-update-esa-2026-232/391369 "2026-11-03T16:31:59Z")

</div>

Out-of-bounds Write in Kibana Leading to Remote Code Execution Out-of-bounds Write (CWE-787) in the Brotli decoder of Node.js, a dependency of Kibana (Dependency on Vulnerable Third-Party Component, CWE-1395), could all…

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## [Elastic Agent “Complete Flavor” (Synthetics) 8.19.24, 9.4.9, 9.5.6 Security Update (ESA-2026-231)](https://discuss.elastic.co/t/elastic-agent-complete-flavor-synthetics-8-19-24-9-4-9-9-5-6-security-update-esa-2026-231/391368)

<div class="topic-metadata">

**Author:** [@Bryan\_Garcia](https://discuss.elastic.co/u/Bryan_Garcia)\
**Replies:** 0\
**Last updated:** [November 3, 2026, 4:31pm UTC](https://discuss.elastic.co/t/elastic-agent-complete-flavor-synthetics-8-19-24-9-4-9-9-5-6-security-update-esa-2026-231/391368 "2026-11-03T16:31:36Z")

</div>

Improper Certificate Validation in Elastic Agent Leading to Interception of TLS Connections Improper Certificate Validation (CWE-295) in the Node.js runtime bundled with the Elastic Agent “Complete Flavor” Docker images…

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## [Heartbeat 8.19.24, 9.4.9, 9.5.6 Security Update (ESA-2026-230)](https://discuss.elastic.co/t/heartbeat-8-19-24-9-4-9-9-5-6-security-update-esa-2026-230/391367)

<div class="topic-metadata">

**Author:** [@Bryan\_Garcia](https://discuss.elastic.co/u/Bryan_Garcia)\
**Replies:** 0\
**Last updated:** [November 3, 2026, 4:31pm UTC](https://discuss.elastic.co/t/heartbeat-8-19-24-9-4-9-9-5-6-security-update-esa-2026-230/391367 "2026-11-03T16:31:12Z")

</div>

Improper Certificate Validation in Heartbeat Leading to Interception of TLS Connections Improper Certificate Validation (CWE-295) in the Node.js runtime bundled with the Heartbeat Docker image, a dependency of Heartbeat…

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## [Kibana 8.19.24, 9.4.9, 9.5.6 Security Update (ESA-2026-229)](https://discuss.elastic.co/t/kibana-8-19-24-9-4-9-9-5-6-security-update-esa-2026-229/391366)

<div class="topic-metadata">

**Author:** [@Bryan\_Garcia](https://discuss.elastic.co/u/Bryan_Garcia)\
**Replies:** 0\
**Last updated:** [November 3, 2026, 4:30pm UTC](https://discuss.elastic.co/t/kibana-8-19-24-9-4-9-9-5-6-security-update-esa-2026-229/391366 "2026-11-03T16:30:49Z")

</div>

Improper Certificate Validation in Kibana Leading to Interception of TLS Connections Improper Certificate Validation (CWE-295) in the Node.js runtime bundled with Kibana, a dependency of Kibana (Dependency on Vulnerable…

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## [Logstash 8.19.24, 9.4.9, 9.5.6 Security Update (ESA-2026-228)](https://discuss.elastic.co/t/logstash-8-19-24-9-4-9-9-5-6-security-update-esa-2026-228/391365)

<div class="topic-metadata">

**Author:** [@Bryan\_Garcia](https://discuss.elastic.co/u/Bryan_Garcia)\
**Replies:** 0\
**Last updated:** [November 3, 2026, 4:30pm UTC](https://discuss.elastic.co/t/logstash-8-19-24-9-4-9-9-5-6-security-update-esa-2026-228/391365 "2026-11-03T16:30:25Z")

</div>

Improper Certificate Validation in Logstash Leading to Interception of TLS Connections Improper Certificate Validation (CWE-295) in the Java runtime bundled with Logstash, a dependency of Logstash (Dependency on Vulnera…

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## [Elasticsearch 8.19.24, 9.4.9, 9.5.6 Security Update (ESA-2026-227)](https://discuss.elastic.co/t/elasticsearch-8-19-24-9-4-9-9-5-6-security-update-esa-2026-227/391364)

<div class="topic-metadata">

**Author:** [@Bryan\_Garcia](https://discuss.elastic.co/u/Bryan_Garcia)\
**Replies:** 0\
**Last updated:** [November 3, 2026, 4:30pm UTC](https://discuss.elastic.co/t/elasticsearch-8-19-24-9-4-9-9-5-6-security-update-esa-2026-227/391364 "2026-11-03T16:30:02Z")

</div>

Improper Certificate Validation in Elasticsearch Leading to Interception of TLS Connections Improper Certificate Validation (CWE-295) in the Java runtime bundled with Elasticsearch, a dependency of Elasticsearch (Depend…

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## [Elasticsearch 8.19.24, 9.4.9, 9.5.6 Security Update (ESA-2026-210)](https://discuss.elastic.co/t/elasticsearch-8-19-24-9-4-9-9-5-6-security-update-esa-2026-210/391363)

<div class="topic-metadata">

**Author:** [@Bryan\_Garcia](https://discuss.elastic.co/u/Bryan_Garcia)\
**Replies:** 0\
**Last updated:** [November 3, 2026, 4:29pm UTC](https://discuss.elastic.co/t/elasticsearch-8-19-24-9-4-9-9-5-6-security-update-esa-2026-210/391363 "2026-11-03T16:29:33Z")

</div>

Use of Cache Containing Sensitive Information in Elasticsearch Leading to Information Disclosure Use of Cache Containing Sensitive Information (CWE-524) in Elasticsearch can lead to information disclosure and incorrect …

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## [Elasticsearch 8.19.24, 9.4.9, 9.5.6 Security Update (ESA-2026-209)](https://discuss.elastic.co/t/elasticsearch-8-19-24-9-4-9-9-5-6-security-update-esa-2026-209/391362)

<div class="topic-metadata">

**Author:** [@Bryan\_Garcia](https://discuss.elastic.co/u/Bryan_Garcia)\
**Replies:** 0\
**Last updated:** [November 3, 2026, 4:29pm UTC](https://discuss.elastic.co/t/elasticsearch-8-19-24-9-4-9-9-5-6-security-update-esa-2026-209/391362 "2026-11-03T16:29:11Z")

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Incorrect Authorization in Elasticsearch Leading to Information Disclosure Incorrect Authorization (CWE-863) in Elasticsearch can lead to information disclosure via Accessing Functionality Not Properly Constrained by AC…

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## [Packetbeat 8.19.24, 9.4.9, 9.5.6 Security Update (ESA-2026-208)](https://discuss.elastic.co/t/packetbeat-8-19-24-9-4-9-9-5-6-security-update-esa-2026-208/391361)

<div class="topic-metadata">

**Author:** [@Bryan\_Garcia](https://discuss.elastic.co/u/Bryan_Garcia)\
**Replies:** 0\
**Last updated:** [November 3, 2026, 4:28pm UTC](https://discuss.elastic.co/t/packetbeat-8-19-24-9-4-9-9-5-6-security-update-esa-2026-208/391361 "2026-11-03T16:28:47Z")

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NULL Pointer Dereference in Packetbeat Leading to Denial of Service NULL Pointer Dereference (CWE-476) in the AMQP protocol parser in Packetbeat can lead to denial of service via specially crafted network traffic. An un…

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## [Kibana 8.19.24, 9.4.9, 9.5.6 Security Update (ESA-2026-206)](https://discuss.elastic.co/t/kibana-8-19-24-9-4-9-9-5-6-security-update-esa-2026-206/391360)

<div class="topic-metadata">

**Author:** [@Bryan\_Garcia](https://discuss.elastic.co/u/Bryan_Garcia)\
**Replies:** 0\
**Last updated:** [November 3, 2026, 4:28pm UTC](https://discuss.elastic.co/t/kibana-8-19-24-9-4-9-9-5-6-security-update-esa-2026-206/391360 "2026-11-03T16:28:24Z")

</div>

Authorization Bypass Through User-Controlled Key in Kibana Leading to Information Disclosure Authorization Bypass Through User-Controlled Key (CWE-639) in Kibana can lead to information disclosure via Accessing Function…

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## [Kibana 9.4.9, 9.5.6 Security Update (ESA-2026-205)](https://discuss.elastic.co/t/kibana-9-4-9-9-5-6-security-update-esa-2026-205/391359)

<div class="topic-metadata">

**Author:** [@Bryan\_Garcia](https://discuss.elastic.co/u/Bryan_Garcia)\
**Replies:** 0\
**Last updated:** [November 3, 2026, 4:28pm UTC](https://discuss.elastic.co/t/kibana-9-4-9-9-5-6-security-update-esa-2026-205/391359 "2026-11-03T16:28:01Z")

</div>

Improper Limitation of a Pathname to a Restricted Directory in Kibana Leading to Unauthorized Resource Deletion Improper Limitation of a Pathname to a Restricted Directory (CWE-22) in the Kibana Fleet feature can lead t…

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## [Kibana 8.19.24, 9.4.9, 9.5.6 Security Update (ESA-2026-204)](https://discuss.elastic.co/t/kibana-8-19-24-9-4-9-9-5-6-security-update-esa-2026-204/391358)

<div class="topic-metadata">

**Author:** [@Bryan\_Garcia](https://discuss.elastic.co/u/Bryan_Garcia)\
**Replies:** 0\
**Last updated:** [November 3, 2026, 4:27pm UTC](https://discuss.elastic.co/t/kibana-8-19-24-9-4-9-9-5-6-security-update-esa-2026-204/391358 "2026-11-03T16:27:38Z")

</div>

Insertion of Sensitive Information Into Sent Data in Kibana Leading to Credential Disclosure Insertion of Sensitive Information Into Sent Data (CWE-201) in Kibana Observability onboarding can lead to disclosure of the c…

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## [Kibana 8.19.24, 9.4.9, 9.5.6 Security Update (ESA-2026-203)](https://discuss.elastic.co/t/kibana-8-19-24-9-4-9-9-5-6-security-update-esa-2026-203/391357)

<div class="topic-metadata">

**Author:** [@Bryan\_Garcia](https://discuss.elastic.co/u/Bryan_Garcia)\
**Replies:** 0\
**Last updated:** [November 3, 2026, 4:27pm UTC](https://discuss.elastic.co/t/kibana-8-19-24-9-4-9-9-5-6-security-update-esa-2026-203/391357 "2026-11-03T16:27:15Z")

</div>

Authorization Bypass Through User-Controlled Key in Kibana Leading to Information Disclosure Authorization Bypass Through User-Controlled Key (CWE-639) in Kibana Machine Learning can lead to information disclosure via A…

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## [Elasticsearch 8.19.24, 9.4.9, 9.5.6 Security Update (ESA-2026-201)](https://discuss.elastic.co/t/elasticsearch-8-19-24-9-4-9-9-5-6-security-update-esa-2026-201/391356)

<div class="topic-metadata">

**Author:** [@Bryan\_Garcia](https://discuss.elastic.co/u/Bryan_Garcia)\
**Replies:** 0\
**Last updated:** [November 3, 2026, 4:26pm UTC](https://discuss.elastic.co/t/elasticsearch-8-19-24-9-4-9-9-5-6-security-update-esa-2026-201/391356 "2026-11-03T16:26:52Z")

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Uncontrolled Recursion in Elasticsearch Leading to Denial of Service Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to denial of service via Serialized Data with Nested Payloads (CAPEC-230). An unauthenticat…

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## [APM Server 8.19.24, 9.4.9, 9.5.6 Security Update (ESA-2026-200)](https://discuss.elastic.co/t/apm-server-8-19-24-9-4-9-9-5-6-security-update-esa-2026-200/391355)

<div class="topic-metadata">

**Author:** [@Bryan\_Garcia](https://discuss.elastic.co/u/Bryan_Garcia)\
**Replies:** 0\
**Last updated:** [November 3, 2026, 4:26pm UTC](https://discuss.elastic.co/t/apm-server-8-19-24-9-4-9-9-5-6-security-update-esa-2026-200/391355 "2026-11-03T16:26:29Z")

</div>

Use of Multiple Resources with Duplicate Identifier in APM Server Leading to Information Disclosure Use of Multiple Resources with Duplicate Identifier (CWE-694) in APM Server can lead to information disclosure via a sp…

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## [Elastic Cloud Enterprise (ECE) 4.2.1 Security Update (ESA-2026-222)](https://discuss.elastic.co/t/elastic-cloud-enterprise-ece-4-2-1-security-update-esa-2026-222/391266)

<div class="topic-metadata">

**Author:** [@ismisepaul](https://discuss.elastic.co/u/ismisepaul)\
**Replies:** 0\
**Last updated:** [October 29, 2026, 10:47am UTC](https://discuss.elastic.co/t/elastic-cloud-enterprise-ece-4-2-1-security-update-esa-2026-222/391266 "2026-10-29T10:47:44Z")

</div>

Improper Link Resolution Before File Access ('Link Following') in Elastic Cloud Enterprise (ECE) Leading to Information Disclosure and Data Modification Improper Link Resolution Before File Access ('Link Following') (CW…

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## [Elastic Cloud Enterprise (ECE) 3.8.6 and 4.2.1 Security Update (ESA-2026-221)](https://discuss.elastic.co/t/elastic-cloud-enterprise-ece-3-8-6-and-4-2-1-security-update-esa-2026-221/391265)

<div class="topic-metadata">

**Author:** [@ismisepaul](https://discuss.elastic.co/u/ismisepaul)\
**Replies:** 0\
**Last updated:** [October 29, 2026, 10:47am UTC](https://discuss.elastic.co/t/elastic-cloud-enterprise-ece-3-8-6-and-4-2-1-security-update-esa-2026-221/391265 "2026-10-29T10:47:21Z")

</div>

Incorrect Authorization in Elastic Cloud Enterprise (ECE) Leading to Unauthorized Modification of Platform Settings Incorrect Authorization (CWE-863) in Elastic Cloud Enterprise (ECE) can lead to unauthorized modificati…

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## [Elastic Cloud Enterprise (ECE) 3.8.6 and 4.2.1 Security Update (ESA-2026-218)](https://discuss.elastic.co/t/elastic-cloud-enterprise-ece-3-8-6-and-4-2-1-security-update-esa-2026-218/391264)

<div class="topic-metadata">

**Author:** [@ismisepaul](https://discuss.elastic.co/u/ismisepaul)\
**Replies:** 0\
**Last updated:** [October 29, 2026, 10:46am UTC](https://discuss.elastic.co/t/elastic-cloud-enterprise-ece-3-8-6-and-4-2-1-security-update-esa-2026-218/391264 "2026-10-29T10:46:58Z")

</div>

Insertion of Sensitive Information into Externally-Accessible File or Directory in Elastic Cloud Enterprise (ECE) Leading to Credential Disclosure Insertion of Sensitive Information into Externally-Accessible File or Di…

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## [Elastic Cloud Enterprise (ECE) 3.8.6 and 4.2.1 Security Update (ESA-2026-216)](https://discuss.elastic.co/t/elastic-cloud-enterprise-ece-3-8-6-and-4-2-1-security-update-esa-2026-216/391263)

<div class="topic-metadata">

**Author:** [@ismisepaul](https://discuss.elastic.co/u/ismisepaul)\
**Replies:** 0\
**Last updated:** [October 29, 2026, 10:46am UTC](https://discuss.elastic.co/t/elastic-cloud-enterprise-ece-3-8-6-and-4-2-1-security-update-esa-2026-216/391263 "2026-10-29T10:46:35Z")

</div>

Improper Link Resolution Before File Access ('Link Following') in Elastic Cloud Enterprise (ECE) Leading to Information Disclosure and Data Loss Improper Link Resolution Before File Access ('Link Following') (CWE-59) in…

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## [Elastic Cloud Enterprise (ECE) 3.8.6 and 4.2.1 Security Update (ESA-2026-215)](https://discuss.elastic.co/t/elastic-cloud-enterprise-ece-3-8-6-and-4-2-1-security-update-esa-2026-215/391262)

<div class="topic-metadata">

**Author:** [@ismisepaul](https://discuss.elastic.co/u/ismisepaul)\
**Replies:** 0\
**Last updated:** [October 29, 2026, 10:46am UTC](https://discuss.elastic.co/t/elastic-cloud-enterprise-ece-3-8-6-and-4-2-1-security-update-esa-2026-215/391262 "2026-10-29T10:46:12Z")

</div>

Improper Link Resolution Before File Access ('Link Following') in Elastic Cloud Enterprise (ECE) Leading to Authentication Bypass Improper Link Resolution Before File Access ('Link Following') (CWE-59) in Elastic Cloud …

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## [Elastic Cloud Enterprise (ECE) 3.8.6 and 4.2.1 Security Update (ESA-2026-212)](https://discuss.elastic.co/t/elastic-cloud-enterprise-ece-3-8-6-and-4-2-1-security-update-esa-2026-212/391261)

<div class="topic-metadata">

**Author:** [@ismisepaul](https://discuss.elastic.co/u/ismisepaul)\
**Replies:** 0\
**Last updated:** [October 29, 2026, 10:45am UTC](https://discuss.elastic.co/t/elastic-cloud-enterprise-ece-3-8-6-and-4-2-1-security-update-esa-2026-212/391261 "2026-10-29T10:45:48Z")

</div>

Insertion of Sensitive Information into Externally-Accessible File or Directory in Elastic Cloud Enterprise (ECE) Leading to Privilege Escalation Insertion of Sensitive Information into Externally-Accessible File or Dir…

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## [Elastic Cloud Enterprise (ECE) 3.8.6 and 4.2.1 Security Update (ESA-2026-211)](https://discuss.elastic.co/t/elastic-cloud-enterprise-ece-3-8-6-and-4-2-1-security-update-esa-2026-211/391260)

<div class="topic-metadata">

**Author:** [@ismisepaul](https://discuss.elastic.co/u/ismisepaul)\
**Replies:** 0\
**Last updated:** [October 29, 2026, 10:45am UTC](https://discuss.elastic.co/t/elastic-cloud-enterprise-ece-3-8-6-and-4-2-1-security-update-esa-2026-211/391260 "2026-10-29T10:45:25Z")

</div>

Authorization Bypass Through User-Controlled Key in Elastic Cloud Enterprise (ECE) Leading to Privilege Escalation Authorization Bypass Through User-Controlled Key (CWE-639) in Elastic Cloud Enterprise (ECE) can lead to…

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## [Elasticsearch 8.19.23, 9.4.8, 9.5.5 Security Update (ESA-2026-199)](https://discuss.elastic.co/t/elasticsearch-8-19-23-9-4-8-9-5-5-security-update-esa-2026-199/390874)

<div class="topic-metadata">

**Author:** [@cronosda](https://discuss.elastic.co/u/cronosda)\
**Replies:** 0\
**Last updated:** [October 6, 2026, 6:53pm UTC](https://discuss.elastic.co/t/elasticsearch-8-19-23-9-4-8-9-5-5-security-update-esa-2026-199/390874 "2026-10-06T18:53:22Z")

</div>

Authorization Bypass Through User-Controlled Key in Elasticsearch Leading to Information Disclosure Authorization Bypass Through User-Controlled Key (CWE-639) in Elasticsearch can lead to Information Disclosure via a sp…

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