Kibana unable to start (validation error cookie_session_storage.js)

Elastic Stack Kibana
1

Hi,

Below error preventing kibana to start. please guide.

'''

log [17:00:36.724] [fatal][root] { ValidationError: child "path" fails because ["path" is not allowed to be empty]

at Object.exports.process (D:\Kibana_ELK\kibana-7.7.0-windows-x86_64\kibana-7.7.0-windows-x86_64\node_modules\joi\lib\errors.js:196:19)

at internals.Object._validateWithOptions (D:\Kibana_ELK\kibana-7.7.0-windows-x86_64\kibana-7.7.0-windows-x86_64\node_modules\joi\lib\types\any\index.js:675:31)

at module.exports.internals.Any.root.validate (D:\Kibana_ELK\kibana-7.7.0-windows-x86_64\kibana-7.7.0-windows-x86_64\node_modules\joi\lib\index.js:146:23)

at Object.internals.implementation [as cookie] (D:\Kibana_ELK\kibana-7.7.0-windows-x86_64\kibana-7.7.0-windows-x86_64\node_modules\hapi-auth-cookie\lib\index.js:94:25)

at module.exports.internals.Auth._strategy (D:\Kibana_ELK\kibana-7.7.0-windows-x86_64\kibana-7.7.0-windows-x86_64\node_modules\hapi\lib\auth.js:52:47)

at createCookieSessionStorageFactory (D:\Kibana_ELK\kibana-7.7.0-windows-x86_64\kibana-7.7.0-windows-x86_64\src\core\server\http\cookie_session_storage.js:98:15)

at process._tickCallback (internal/process/next_tick.js:68:7)

isJoi: true,

name: 'ValidationError',

details:

at createCookieSessionStorageFactory (D:\Kibana_ELK\kibana-7.7.0-windows-x86_64\kibana-7.7.0-windows-x86_64\src\core\server\http\cookie_session_storage.js:98:15)

at process._tickCallback (internal/process/next_tick.js:68:7)

isJoi: true,

name: 'ValidationError',

details:

[ { message: '"path" is not allowed to be empty',

   path: [Array],

   type: 'any.empty',

   context: [Object] } ],

_object:

{ cookie: 'sid',

 password: '96bdea990f70c0c2759d0e71b317f1cb',

 validateFunc: [AsyncFunction: validateFunc],

 isSecure: false,

 path: '',

 clearInvalid: false,

 isHttpOnly: true,

 isSameSite: false },

annotate: [Function] }
'''

2

Can you please share your kibana.yml (be sure to remove any sensitive information).

Please note that your post inadvertently shared your xpack.security.encryptionKey please rotate this key.

3

It sounds like you might have bumped into this bug: https://github.com/elastic/kibana/issues/69344

If you kibana.yml has a setting like server.basePath: '' or server.basePath: "" can you try comment out that setting and see if Kibana starts up?

4

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