# Logstash 8.15.3, 8.16.0 Security Update (ESA-2024-48)

**URL:** <https://discuss.elastic.co/t/logstash-8-15-3-8-16-0-security-update-esa-2024-48/376922>\
**Category:** Security Announcements\
**Created:** [April 8, 2025, 3:58pm UTC](https://discuss.elastic.co/t/logstash-8-15-3-8-16-0-security-update-esa-2024-48/376922 "2025-04-08T15:58:01Z")\
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**Author:** ![ismisepaul](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ismisepaul/32/102235_2.png) [@ismisepaul](https://discuss.elastic.co/u/ismisepaul)\
**Post date:** [April 8, 2025, 3:58pm UTC](https://discuss.elastic.co/t/logstash-8-15-3-8-16-0-security-update-esa-2024-48/376922/1 "2025-04-08T15:58:01Z")

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**Logstash Inefficient Regular Expression Complexity (ESA-2024-48)**

On October 28th, 2024, Ruby announced CVE-2024-49761 in rexml which can lead to ReDoS when parsing XML that has many digits between &# and x...; in a hex numeric character reference (&#x...;).

The issue only affects users that use the[Logstash XML filter plugin](https://www.elastic.co/guide/en/logstash/current/plugins-filters-xml.html), that can parse untrusted XML data.

**Affected Versions:**  
Logstash versions 7.0.0 \<= 8.15.2

**Solutions and Mitigations:**  
The issue is resolved in version 8.15.3, 8.16.0 and higher.

**Severity:** CVSSv3.1: 5.3(Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L  
**CVE ID:** CVE-2024-49761

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_[View the full topic](https://discuss.elastic.co/t/logstash-8-15-3-8-16-0-security-update-esa-2024-48/376922)._