Elasticsearch 8.19.23, 9.4.8, 9.5.5 Security Update (ESA-2026-199)

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 specially crafted cross-cluster search request that references an unauthorized sha...

Elasticsearch 8.19.23, 9.4.8, 9.5.5 Security Update (ESA-2026-198)

Uncontrolled Recursion in Elasticsearch Leading to Denial of Service Uncontrolled Recursion CWE-674 in Elasticsearch can lead to Denial of Service via a specially crafted request that causes the server to construct and process a deeply nested data structure with no bound on recursion depth...

Elasticsearch 8.19.22, 9.4.7, 9.5.4 Security Update (ESA-2026-197)

Incorrect Authorization in Elasticsearch Leading to Privilege Escalation Incorrect Authorization CWE-863 in Elasticsearch can lead to Privilege Escalation via a delegated administrative privilege whose scope is not fully enforced during authorization checks. Elasticsearch contains an incorrect...

Elasticsearch 8.19.21, 9.4.6, 9.5.2 Security Update (ESA-2026-196)

Uncontrolled Recursion in Elasticsearch Leading to Denial of Service Uncontrolled Recursion CWE-674 in Elasticsearch can lead to Denial of Service via a specially crafted, deeply nested request submitted to the aggregation feature of the search API. Elasticsearch contains an uncontrolled recursio...

Elasticsearch 8.19.23, 9.4.8, 9.5.5 Security Update (ESA-2026-195)

Memory Allocation with Excessive Size Value in Elasticsearch Leading to Denial of Service Memory Allocation with Excessive Size Value CWE-789 in Elasticsearch can lead to denial of service via Excessive Allocation CAPEC-130. An authenticated user with connector management privileges could cause t...

Elastic Agent / Endpoint 8.19.22, 9.4.8, and 9.5.5 Security Update (ESA-2026-194)

Uncaught Exception in Elastic Endpoint Leading to Denial of Service Uncaught Exception CWE-248 in Elastic Endpoint can lead to denial of service via a specially crafted file name. When Elastic Defend's Elastic Endpoint component processes a file name under certain system locale configurations...

Kibana 9.4.8, 9.5.5 Security Update (ESA-2026-193)

Incorrect Authorization in Kibana Leading to Sensitive Information Disclosure Incorrect Authorization CWE-863 in Kibana can lead to sensitive information disclosure via Accessing Functionality Not Properly Constrained by ACLs CAPEC-1. An authenticated Kibana user with limited Fleet management...

Elasticsearch 9.4.7, 9.5.3, 8.19.23 Security Update (ESA-2026-192)

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 Excessive Allocation CAPEC-130. Elasticsearch enforces a size limit on the user-suppli...

Kibana 9.4.0 Security Update (ESA-2026-191)

Missing Authorization in Kibana Leading to Information Disclosure Missing Authorization CWE-862 in Kibana can lead to information disclosure via Accessing Functionality Not Properly Constrained by ACLs CAPEC-1. An internal API surface within the Metrics Experience feature did not enforce a...

Elasticsearch 9.4.8, 9.5.5 Security Update (ESA-2026-190)

Uncontrolled Recursion in Elasticsearch Leading to Denial of Service Uncontrolled Recursion CWE-674 in Elasticsearch can allow an authenticated user with low privileges to terminate an Elasticsearch node, resulting in denial of service, via Excessive Allocation CAPEC-130. Affected Versions: 9.x:...

Elasticsearch 8.19.22, 9.4.8, and 9.5.5 Security Update (ESA-2026-189)

Inefficient Regular Expression Complexity in Elasticsearch Leading to Denial of Service Inefficient Regular Expression Complexity CWE-1333 in Elasticsearch can lead to denial of service via Regular Expression Exponential Blowup CAPEC-492. The ES|QL CHUNK function's recursive chunking strategy...

Elasticsearch 8.19.19, 9.3.8, 9.4.4 Security Update (ESA-2026-188)

Incorrect Authorization in Elasticsearch Leading to Unauthorized Data Stream Modification Incorrect Authorization CWE-863 in Elasticsearch can lead to unauthorized data stream modification via Accessing Functionality Not Properly Constrained by ACLs CAPEC-1. An authenticated user with sufficient...

Kibana 8.19.22, 9.4.7, 9.5.4 Security Update (ESA-2026-187)

Authorization Bypass Through User-Controlled Key in Kibana Leading to Cross-Tenant Data Interception Authorization Bypass Through User-Controlled Key CWE-639 in Kibana could lead to cross-tenant data interception. In this context, "tenant" refers to a user or team sharing the same Kibana...

Elasticsearch 8.19.23, 9.4.8, 9.5.5 Security Update (ESA-2026-185)

Uncontrolled Resource Consumption in Elasticsearch Leading to Denial of Service Uncontrolled Resource Consumption CWE-400 in Elasticsearch can lead to denial of service via Excessive Allocation CAPEC-130. A low-privileged authenticated user can submit a specially crafted query that causes...

Elasticsearch 8.19.22, 9.4.7, 9.5.3 Security Update (ESA-2026-184)

Uncontrolled Resource Consumption in Elasticsearch Leading to denial of service Uncontrolled Resource Consumption CWE-400 in Elasticsearch can lead denial of service via Excessive Allocation CAPEC-130 Affected Versions: 8.x: All versions from 8.0.0 up to and including 8.19.21 9.x: All versions fr...

Elasticsearch 8.19.22, 9.4.7, 9.5.4 Security Update (ESA-2026-183)

Uncontrolled Resource Consumption in Elasticsearch Leading to denial of service Uncontrolled Resource Consumption CWE-400 in Elasticsearch can lead denial of service via Excessive Allocation CAPEC-130 Affected Versions: 8.x: All versions from 8.0.0 up to and including 8.19.21 9.x: All versions fr...

Elasticsearch 9.4.7, 9.5.4 Security Update (ESA-2026-182)

Uncontrolled Resource Consumption in Elasticsearch Leading to denial of service Uncontrolled Resource Consumption CWE-400 in Elasticsearch can lead denial of service via Excessive Allocation CAPEC-130 Affected Versions: 9.x: All versions from 9.2.0 up to and including 9.4.6 All versions from 9.5....

Kibana 8.19.22, 9.4.7, 9.5.3 Security Update (ESA-2026-181)

Uncontrolled Resource Consumption in Kibana Leading to denial of service Uncontrolled Resource Consumption CWE-400 in Kibana can lead denial of service via Excessive Allocation CAPEC-130 Affected Versions: 8.x: All versions from 8.0.0 up to and including 8.19.21 9.x: All versions from 9.0.0 up to...

Elasticsearch 8.19.22, 9.4.7, 9.5.4 Security Update (ESA-2026-180)

Uncontrolled Resource Consumption in Elasticsearch Leading to denial of service Uncontrolled Resource Consumption CWE-400 in Elasticsearch can lead denial of service via Excessive Allocation CAPEC-130 Affected Versions: 8.x: All versions from 8.0.0 up to and including 8.19.21 9.x: All versions fr...

Elasticsearch 8.19.22, 9.4.7, 9.5.4 Security Update (ESA-2026-179)

Uncontrolled Resource Consumption in Elasticsearch Leading to denial of service Uncontrolled Resource Consumption CWE-400 in Elasticsearch can lead denial of service via Excessive Allocation CAPEC-130 Affected Versions: 8.x: All versions from 8.12.0 up to and including 8.19.21 9.x: All versions...

Elasticsearch 8.19.22, 9.4.7, 9.5.4 Security Update (ESA-2026-176)

Uncontrolled Resource Consumption in Elasticsearch Leading to Denial of Service Uncontrolled Resource Consumption CWE-400 in Elasticsearch can lead to denial of service via Excessive Allocation CAPEC-130. Affected Versions: 8.x: All versions from 8.0.0 up to and including 8.19.21 9.x: All version...

Elasticsearch 8.19.21, 9.4.6, 9.5.3 Security Update (ESA-2026-170)

Uncontrolled Resource Consumption in Elasticsearch Leading to Denial of Service Uncontrolled Resource Consumption CWE-400 in Elasticsearch can lead to denial of service via Excessive Allocation CAPEC-130. Affected Versions: 8.x: All versions from 8.0.0 up to and including 8.19.20 9.x: All version...

Kibana 8.19.22, 9.4.7, 9.5.3 Security Update (ESA-2026-139)

Missing Authorization in Kibana Leading to Unauthorized Deletion of Data Missing Authorization CWE-862 in Kibana can lead to unauthorized deletion of data via Exploiting Incorrectly Configured Access Control Security Levels CAPEC-180. An authenticated user holding Synthetics privileges scoped to ...

Kibana 8.19.22, 9.4.6 Security Update (ESA-2026-103)

Authorization Bypass Through User-Controlled Key in Kibana Leading to Unauthorized Disclosure, Modification, and Deletion of Data Authorization Bypass Through User-Controlled Key CWE-639 in Kibana can lead to unauthorized disclosure, modification, and deletion of data via Accessing Functionality...

Kibana 9.4.7, 9.5.0 Security Update (ESA-2026-85)

Unintended Proxy or Intermediary 'Confused Deputy' in Kibana Leading to Privilege Escalation Unintended Proxy or Intermediary 'Confused Deputy' CWE-441 in Kibana Agent Builder can lead to privilege escalation. A non-administrative user able to edit a shared agent could cause privileged operations...

Kibana 8.19.21, 9.4.6, 9.5.3 Security Update (ESA-2026-178)

Incorrect Authorization in Kibana Leading to Unauthorized Configuration Modification Incorrect Authorization CWE-863 in Kibana can lead to unauthorized configuration modification via Exploiting Incorrectly Configured Access Control Security Levels CAPEC-180. Affected Versions: Fixes should be...

Kibana 9.4.6, 9.5.3 Security Update (ESA-2026-175)

Incorrect Authorization in Kibana Leading to Information Disclosure Incorrect Authorization CWE-863 in Kibana can lead to information disclosure via Exploiting Incorrectly Configured Access Control Security Levels CAPEC-180. Affected Versions: 9.x: All versions from 9.0.0 up to and including 9.4....

Kibana 8.19.21, 9.4.6, 9.5.3 Security Update (ESA-2026-174)

Incorrect Authorization in Kibana Leading to Denial of Service Incorrect Authorization CWE-863 in Kibana can lead to denial of service via Exploiting Incorrectly Configured Access Control Security Levels CAPEC-180. Affected Versions: 8.x: All versions from 8.0.0 up to and including 8.19.20 9.x: A...

Kibana 8.19.21, 9.4.6, 9.5.3 Security Update (ESA-2026-154)

Missing Authorization in Kibana Leading to Unauthorized Cross-Space Write Operations Missing Authorization in Kibana Leading to Unauthorized Modification of Data / Missing Authorization CWE-862 in Kibana can lead to unauthorized modification of data via Privilege Abuse CAPEC-122. An authenticated...

Kibana 9.4.6, 9.5.3 Security Update (ESA-2026-153)

Missing Authorization in Kibana Fleet Plugin Leading to Cross-Space Agent Data Disclosure Missing Authorization in Kibana Leading to Information Disclosure / Missing Authorization CWE-862 in the Kibana Fleet feature can lead to information disclosure via Privilege Abuse CAPEC-122. An authenticate...

Kibana 8.19.21, 9.4.6, 9.5.3 Security Update (ESA-2026-151)

Improper Control of Generation of Code in Kibana Leading to Privilege Escalation An insufficiently validated configuration field in Kibana's Cribl integration allows an authenticated user holding Kibana Fleet management privileges to inject attacker-controlled expressions into a server-side scrip...

Kibana 8.19.21, 9.4.6, 9.5.3 Security Update (ESA-2026-140)

Incorrect Authorization in Kibana Leading to Privilege Escalation Incorrect Authorization CWE-863 in Kibana can lead to privilege escalation via Input Data Manipulation CAPEC-153. Elasticsearch cluster privilege declarations originating from integration packages were not validated before being us...

Kibana 8.19.21, 9.4.6, 9.5.2 Security Update (ESA-2026-169)

Incorrect Authorization in Kibana Leading to Unauthorized Resource Consumption Incorrect Authorization CWE-863 in the Kibana machine learning feature can lead to unauthorized resource consumption via Exploiting Incorrectly Configured Access Control Security Levels CAPEC-180. An authenticated user...

Filebeat 8.19.18, 9.3.1 Security Update (ESA-2026-165)

Allocation of Resources Without Limits or Throttling CWE-770 in Filebeat can lead to a denial of service via Excessive Allocation CAPEC-130. An attacker able to reach the Filebeat HTTP ingestion endpoint could send specially crafted compressed requests that exhaust the memory resources of the...

Fleet Server 8.19.16, 9.3.5, 9.4.2 Security Update (ESA-2026-164)

Incorrect Authorization in Fleet Server Leading to Denial of Service of Agent Upload Operations Incorrect Authorization CWE-863 in Fleet Server can lead to a denial of service of agent upload operations via Privilege Abuse CAPEC-122. Fleet Server does not correctly verify session ownership during...

Kibana 8.19.16, 9.3.5, 9.4.2 Security Update (ESA-2026-163)

Allocation of Resources Without Limits or Throttling in Kibana Leading to Denial of Service Allocation of Resources Without Limits or Throttling CWE-770 in Kibana can lead to a denial of service via Excessive Allocation CAPEC-130. An authenticated user with low-level privileges could submit a...

Kibana 9.4.4 Security Update (ESA-2026-161)

Observable Response Discrepancy in Kibana Leading to Cross-Space Information Disclosure Observable Response Discrepancy CWE-204 in the Kibana Osquery feature can lead to information disclosure via Query System for Information CAPEC-54. An authenticated user holding Osquery live-query privileges...

Kibana 8.19.17, 9.3.6, 9.4.3 Security Update (ESA-2026-159)

Improper Limitation of a Pathname to a Restricted Directory 'Path Traversal' in Kibana Leading to Unauthorized Resource Deletion Improper Limitation of a Pathname to a Restricted Directory 'Path Traversal' CWE-22 in the Kibana Fleet feature can lead to the unauthorized deletion of resources via...

Kibana 8.19.18, 9.3.6, 9.4.3 Security Update (ESA-2026-158)

Improper Limitation of a Pathname to a Restricted Directory in Kibana Leading to Unauthorized Deletion of Privileged Resources Improper Limitation of a Pathname to a Restricted Directory 'Path Traversal' CWE-22 in the Kibana Fleet feature can lead to the unauthorized deletion of privileged...

Kibana 8.19.18, 9.4.3 Security Update (ESA-2026-157)

Stored Path Traversal in Kibana Leading to Unauthorized Deletion of Internal Resources Improper Limitation of a Pathname to a Restricted Directory 'Path Traversal' CWE-22 in the Kibana Fleet feature can lead to the unauthorized deletion of internal resources via Path Traversal CAPEC-126. A...

Kibana 8.19.19, 9.3.8, 9.4.4 Security Update (ESA-2026-156)

Incorrect Authorization in Kibana Leading to Unauthorized Cross-Space Exposure of Machine Learning Job Data Incorrect Authorization CWE-863 in the Kibana machine learning feature can lead to information disclosure via Exploiting Incorrectly Configured Access Control Security Levels CAPEC-180. An...

APM Server 8.19.20, 9.4.5, 9.5.1 Security Update (ESA-2026-152)

Improper Handling of Highly Compressed Data in APM Server Leading to Persistent Denial of Service Improper Handling of Highly Compressed Data CWE-409 in APM Server can lead to a persistent denial of service via Excessive Allocation CAPEC-130. An authenticated user with write access to source map...

Elastic Agent 8.19.21, 9.4.6, 9.5.2 Security Update (ESA-2026-150)

Incorrect Permission Assignment for Critical Resource in Elastic Agent Leading to Local Privilege Escalation to SYSTEM Incorrect Permission Assignment for Critical Resource CWE-732 in Elastic Agent can lead to local privilege escalation via Replace Binaries CAPEC-642. On Windows systems where...

Elastic Maps Server 8.19.19, 9.4.4, 9.5.1 Security Update (ESA-2026-148)

Improper Limitation of a Pathname to a Restricted Directory in Elastic Maps Server Leading to Unauthorized File Disclosure Improper Limitation of a Pathname to a Restricted Directory 'Path Traversal' CWE-22 in Elastic Maps Server can lead to information disclosure via Path Traversal CAPEC-126. An...

Kibana 9.4.5 Security Update (ESA-2026-147)

Missing Authorization in Kibana Leading to Unauthorized Elasticsearch Index Data Exposure Missing Authorization CWE-862 in Kibana can lead to information disclosure via Privilege Abuse CAPEC-122. An authorization control was not applied to a Kibana Entity Store configuration operation, allowing a...

Elastic Cloud on Kubernetes 3.5.0 Security Update (ESA-2026-146)

Incomplete Cleanup in Elastic Cloud on Kubernetes Leading to Unauthorized Cross-Namespace Credential Retention Incomplete Cleanup CWE-459 in Elastic Cloud on Kubernetes ECK can lead to unauthorized access via Privilege Abuse CAPEC-122. Authentication credentials persist after a cross-namespace...

Elastic Cloud on Kubernetes 3.5.0 Security Update (ESA-2026-145)

Incorrect Authorization in Elastic Cloud on Kubernetes Leading to Unauthorized Modification of Data Incorrect Authorization CWE-863 in Elastic Cloud on Kubernetes ECK can lead to unauthorized modification of data via Metadata Spoofing CAPEC-690. An actor holding limited Kubernetes permissions...

Elasticsearch 8.19.19, 9.3.8, 9.4.4, 9.5.1 Security Update (ESA-2026-143)

Missing Authorization in Elasticsearch Leading to Information Disclosure Missing Authorization CWE-862 in the Elasticsearch custom inference service can lead to information disclosure via Privilege Abuse CAPEC-122. A user holding only inference execution privileges could cause outbound inference...

Kibana 8.19.21, 9.4.6, 9.5.2 Security Update (ESA-2026-142)

Incorrect Authorization in Kibana Leading to Unauthorized Disclosure, Modification, and Deletion of Data Incorrect Authorization CWE-863 in Kibana can lead to unauthorized disclosure, modification, and deletion of data via Accessing Functionality Not Properly Constrained by ACLs CAPEC-1. Where tw...

Elasticsearch 8.19.20, 9.4.5, 9.5.1 Security Update (ESA-2026-141)

Inconsistent Interpretation of HTTP Requests 'HTTP Request Smuggling' in Elasticsearch Leading to Information Disclosure Inconsistent Interpretation of HTTP Requests 'HTTP Request Smuggling' CWE-444 in Elasticsearch can lead to information disclosure via HTTP Request Smuggling CAPEC-33. Under...