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...

Kibana 9.4.4 Security Update (ESA-2026-83)

Missing Authorization in Kibana Leading to Privilege Escalation and Information Disclosure Kibana Agent Builder does not correctly verify that the requesting user holds the privileges required by a separate Kibana feature before it creates and runs a tool that invokes that feature's functionality...

Kibana 9.3.3 Security Update (ESA-2026-40)

Server-Side Request Forgery SSRF in Kibana Leading to Unauthorized Network Access Server-Side Request Forgery CWE-918 in Kibana can allow an authenticated user with connector management privileges to bypass the operator-configured connector allowlist, causing the Kibana server to issue outbound...

Kibana 8.19.16 Security Update (ESA-2026-39)

Uncontrolled Resource Consumption in Kibana Leading to Denial of Service Uncontrolled Resource Consumption CWE-400 in Kibana can lead to denial of service via Excessive Allocation CAPEC-130. An authenticated user with viewer-level access can submit a request containing an oversized input value to...

Kibana 8.19.16, 9.3.5 Security Update (ESA-2026-34)

Improper Neutralization of Input During Web Page Generation in Kibana Leading to Stored HTML Injection Improper Neutralization of Input During Web Page Generation CWE-79 in Kibana can lead to stored HTML injection. A user with write access to an Elasticsearch index could persist crafted markup...

Elasticsearch 8.19.10, 9.1.10, 9.2.4 Security Update (ESA-2026-07)

Elasticsearch yawkat LZ4 Java - CVE-2025-66566 ESA-2026-07 An Information Disclosure vulnerability CVE-2025-66566 exists in the yawkat LZ4 Java library used by Elasticsearch that allows an attacker to read previous buffer contents through specially crafted compressed input sent via the transport...

Elasticsearch 8.19.8, 9.1.8, and 9.2.2 Security Update (ESA-2025-37)

Elasticsearch Allocation of Resources Without Limits or Throttling ESA-2025-37 Allocation of Resources Without Limits or Throttling CWE-770 in Elasticsearch can allow an authenticated user with snapshot restore privileges to cause Excessive Allocation CAPEC-130 of memory and a denial of service D...

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...

Elasticsearch 8.19.20, 9.4.5 Security Update (ESA-2026-77)

Inefficient Algorithmic Complexity in Elasticsearch Leading to Denial of Service A flaw in Elasticsearch allows a low-privileged authenticated user who can index documents to submit a single small document containing a crafted user-supplied input. Processing one such document occupies a worker...

Kibana 9.4.3 Security Update (ESA-2026-58)

Improper Access Control in Kibana Leading to Unauthorized Data Modification and Information Disclosure Improper Access Control CWE-284 in Kibana can lead to unauthorized modification of Entity Analytics Watchlist configuration and potential information disclosure. A low-privileged authenticated...

Kibana 8.19.10, 9.1.10, 9.2.4 Security Update (ESA-2026-08)

Improper Input Validation in Kibana Email Connector Leading to Excessive Allocation ESA-2026-08 Improper Input Validation CWE-20 in Kibana's Email Connector can allow an attacker to cause an Excessive Allocation CAPEC-130 through a specially crafted email address parameter. This requires an...

Kibana 8.19.7, 9.1.7, 9.2.1 Security Update (ESA-2025-25)

Kibana Improper Neutralization of Input During Web Page Generation 'Cross-site Scripting' ESA-2025-25 Improper Neutralization of Input During Web Page Generation 'Cross-site Scripting' in Kibana can lead to DOM-based XSS due to the use of Vega. The issue on Vega is tracked as CVE-2025-59840...

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 8.19.18, 9.3.7, 9.4.3 Security Update (ESA-2026-59)

Authorization Bypass Through User-Controlled Key in Kibana Leading to Unauthorized Information Disclosure and Case Attachment Integrity Compromise Authorization Bypass Through User-Controlled Key CWE-639 in Kibana can lead to unauthorized information disclosure and case attachment integrity...

Packetbeat 8.19.9, 9.1.9, and 9.2.3 Security Update (ESA-2025-31)

Packetbeat Out-of-bounds Read ESA-2025-31 Out-of-bounds read CWE-125 allows an unauthenticated remote attacker to perform a buffer overflow CAPEC-100 via the NFS protocol dissector, leading to a denial-of-service DoS through a reliable process crash when handling truncated XDR-encoded RPC message...

Enterprise Search 8.18.6, 8.19.3 Security Update (ESA-2025-15) (CVE-2025-54988)

Enterprise Search XML external entity XXE injection in Apache Tika ESA-2025-15 On August 20, 2025, CVE-2025-54988 in Apache Tika PDF parser module was announced, disclosing an XML External Entity injection flaw in the Apache Tika tika-parser-pdf-module. This vulnerability allows an attacker to...

Kibana 8.19.10, 9.1.10, 9.2.4 Security Update (ESA-2026-04)

Allocation of Resources Without Limits or Throttling in Kibana Fleet ESA-2026-04 Allocation of Resources Without Limits or Throttling CWE-770 in Kibana Fleet can lead to Excessive Allocation CAPEC-130 via a specially crafted bulk retrieval request. This requires an attacker to have low-level...

Kibana - Crowdstrike Connector 8.18.8, 8.19.5, 9.0.8, and 9.1.5 Security Update (ESA-2025-19)

Kibana Insufficiently Protected Credentials in the CrowdStrike Connector ESA-2025-19 Insufficiently Protected Credentials in the Crowdstrike connector can lead to Crowdstrike credentials being leaked. A malicious user can access cached credentials from an Elastic Crowdstrike connector in another...

Kibana 8.14.0/7.17.22 Security Update (ESA-2024-11)

Kibana uncontrolled resource consumption ESA-2024-11 A high-privileged user, allowed to create custom osquery packs could affect the availability of Kibana by uploading a maliciously crafted osquery pack. Affected Versions: Kibana versions after 7.13.0 and before 7.17.22 and versions after 8.0.0...

Kibana 9.3.7, 9.4.4 Security Update (ESA-2026-55)

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 can submit a specially crafted request to...

Kibana 8.19.16, 9.3.5, 9.4.1 Security Update (ESA-2026-32)

Uncontrolled Resource Consumption in Kibana Leading to Denial of Service Uncontrolled Resource Consumption CWE-400 in Kibana can lead to a denial of service via Excessive Allocation CAPEC-130. An authenticated user holding a low-privileged role can submit a specially crafted, oversized payload to...

Kibana 8.19.12, 9.2.6, 9.3.1 Security Update (ESA-2026-19)

Missing Authorization in Kibana Leading to Unauthorized Endpoint Response Action Configuration Missing Authorization CWE-862 in Kibana’s server-side Detection Rule Management can lead to Unauthorized Endpoint Response Action Configuration host isolation, process termination, and process suspensio...

Kibana 9.3.1 Security Update (ESA-2026-17)

Improper Neutralization of Special Elements Used in a Template Engine in Kibana Workflows Leading to Server-Side Request Forgery SSRF Improper Neutralization of Special Elements Used in a Template Engine CWE-1336 exists in Workflows in Kibana which could allow an attacker to read arbitrary files...

Kibana 8.19.8, 9.1.8, and 9.2.2 Security Update (ESA-2025-28)

Kibana Cross-site Scripting via the Integration Package Upload Functionality ESA-2025-28 Improper neutralization of input during web page generation 'Cross-site Scripting' CWE-79 allows an authenticated user to render an HTML page within a user’s browser via the integration package upload...

Kibana 8.19.19, 9.3.8, 9.4.4 Security Update (ESA-2026-69)

Incorrect Authorization in Kibana Leading to Machine Learning Audit Log Integrity Compromise Incorrect Authorization CWE-863 in Kibana can lead to integrity compromise of Machine Learning audit and notification records via Accessing Functionality Not Properly Constrained by ACLs CAPEC-1. A...

Fleet Server 8.19.15, 9.3.4, 9.4.0 Security Update (ESA-2026-41)

Dependency on Vulnerable Third-Party Component in Fleet Server Leading to Denial of Service Dependency on Vulnerable Third-Party Component CWE-1395 exists in the Go standard library used by Fleet Server that could allow a remote attacker to cause denial of service by sending a specially crafted...

Elastic OTel Java 1.10.0 Security Update (ESA-2026-22 / GHSA-xw7x-h9fj-p2c7)

Dependency on Vulnerable Third-Party Component in Elastic OTel Java Leading to Remote Code Execution Dependency on Vulnerable Third-Party Component CWE-1395 exists in Elastic OTel Java via a dependency on OpenTelemetry Java instrumentation library. This vulnerability could allow an attacker to...

Kibana 8.19.12, 9.2.6, 9.3.1 Security Update (ESA-2026-13)

Improper Input Validation in Kibana Leading to Denial of Service Improper Input Validation CWE-20 in the internal Content Connectors search endpoint in Kibana can lead Denial of Service via Input Data Manipulation CAPEC-153 Affected Versions: 8.x: All versions from 8.4.0 up to and including 8.19....

Kibana 8.18.8, 8.19.5, 9.0.8, 9.1.5 Security Update (ESA-2025-17)

Kibana Stored Cross-Site-ScriptingXSS ESA-2025-17 Improper Validation of Specified Type of Input in Kibana can lead to stored Cross-Site-Scripting XSS Affected Versions: 7.x: All versions from 7.0.0 and up to and including 7.17.29 8.x: All versions from 8.0.0 and up to and including 8.18.7 8.19.x...

Elastic Agent 7.17.25 and 8.15.4 Security Update (ESA-2024-39)

Elastic Agent Inclusion of Functionality from Untrusted Control Sphere ESA-2024-39 Inclusion of functionality from an untrusted control sphere in Elastic Agent subprocess, osqueryd, allows local attackers to execute arbitrary code via parameter injection. An attacker requires local access and the...

Logstash 5.0.0-6.8.20 and 7.0.0-7.16.0: Log4j CVE-2021-44228, CVE-2021-45046 remediation

Note — These instructions only apply if you are running Logstash 5.0.0 - 6.8.20, or 7.0.0 - 7.16.0. If you are running an older version of Logstash, or a version of Logstash = 6.8.21 in the 6.x series or = 7.16.1 in the 7.x series, these instructions do not apply. Please follow the guidance in ma...

Fleet Server 8.19.11, 9.2.5, 9.3.0 Security Update (ESA-2026-44)

Allocation of Resources Without Limits or Throttling in Fleet Server Leading to Denial of Service Allocation of Resources Without Limits or Throttling CWE-770 in Fleet Server can lead to a denial of service via Excessive Allocation CAPEC-130. An attacker can submit a specially crafted request to ...

8.19.16, 9.3.5 Security Update (ESA-2026-33)

Operation on a Resource after Expiration or Termination in Kibana Leading to Unauthorized File Access Operation on a Resource after Expiration or Termination CWE-672 in Kibana can lead to unauthorized information disclosure. A logic error in how expiration timestamps were validated allowed a...

Kibana 8.19.10, 9.1.10, 9.2.4 Security Update (ESA-2026-05)

External Control of File Name or Path and Server-Side Request Forgery SSRF in Kibana Google Gemini Connector ESA-2026-05 External Control of File Name or Path CWE-73 combined with Server-Side Request Forgery CWE-918 can allow an attacker to cause arbitrary file disclosure through a specially...

Kibana 8.19.7, 9.1.7, and 9.2.1 Security Update (ESA-2025-39)

Kibana Improper Authorization ESA-2025-39 Improper Authorization CWE-285 in Kibana can lead to privilege escalation CAPEC-233 by allowing an authenticated user to bypass intended permission restrictions via a crafted HTTP request. This allows an attacker who lacks the 'live queries - read'...

Elasticsearch 8.19.9, 9.1.9, and 9.2.3 Security Update (ESA-2025-33)

Elasticsearch Allocation of Resources Without Limits or Throttling ESA-2025-33 Allocation of Resources Without Limits or Throttling CWE-770 in Elasticsearch can allow a low-privileged authenticated user to cause Excessive Allocation CAPEC-130 causing a persistent denial of service OOM crash via...

Elastic Defend 8.19.6, 9.1.6, and 9.2.0 Security Update (ESA-2025-23)

Elastic Defend Improper Preservation of Permissions ESA-2025-23 Improper preservation of permissions in Elastic Defend on Windows hosts can lead to arbitrary files on the system being deleted by the Defend service running as SYSTEM. In some cases, this could result in local privilege escalation...

Kibana 7.17.19 and 8.13.0 Security Update (ESA-2024-47)

Kibana Unrestricted Upload of File ESA-2024-47 Unrestricted file upload in Kibana allows an authenticated attacker to compromise software integrity by uploading a crafted malicious file due to insufficient server-side validation. Affected Versions: 7.17.0 to 7.17.18 and 8.0.0 to 8.12.3 Solutions...

Elastic Agent 8.15.0 Security Update (ESA-2024-23)

Elastic Agent Insertion of Sensitive Information into Log File ESA-2024-23 An issue was discovered whereby Elastic Agent will leak secrets from the agent policy elastic-agent.yml only when the log level is configured to debug. By default the log level is set to info, where no leak occurs. Affecte...

Kibana 8.14.2 / 7.17.23 Security Update (ESA-2024-22)

Kibana arbitrary code execution via prototype pollution ESA-2024-22 A flaw allowing arbitrary code execution was discovered in Kibana. An attacker with access to ML and Alerting connector features, as well as write access to internal ML indices can trigger a prototype pollution vulnerability,...

Endpoint v8.10.4 Security Update

Elastic Endpoint Insertion of Sensitive Information into Log File ESA-2023-21 If Elastic Endpoint v7.9.0 - v8.10.3 is configured to use a non-default option in which the logging level is explicitly set to debug, and when Elastic Agent is simultaneously configured to collect and send those logs to...

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 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...

Kibana 8.19.9, 9.1.9, and 9.2.3 Security Update (ESA-2025-35)

Kibana Improper Neutralization of Input During Web Page Generation 'Cross-site Scripting' ESA-2025-35 Improper neutralization of input during web page generation 'Cross-site Scripting' CWE-79 allows an unauthenticated user to embed a malicious script in content that will be served to web browsers...

Kibana 8.18.8, 8.19.5, 9.0.8, and 9.1.5 Security Update (ESA-2025-20)

Kibana Cross-Site Scripting XSS ESA-2025-20 Improper Neutralization of Input During Web Page Generation in Kibana can lead to Stored XSS via case file upload. Affected Versions: 7.x: All versions prior to and including 7.17.29 8.x: All versions from 8.0.0 up to and including 8.18.7 8.19.x: All...

Kibana 8.15.1 Security Update (ESA-2024-27, ESA-2024-28)

Kibana arbitrary code execution via YAML deserialization in Amazon Bedrock Connector ESA-2024-27 A deserialization issue in Kibana can lead to arbitrary code execution when Kibana attempts to parse a YAML document containing a crafted payload. This issue only affects users that use Elastic...

APM Server 8.14.0 Security Update (ESA-2024-09)

APM Server - Uncontrolled Resource Consumption through HTTP/2 endpoints - CVE-2023-45288 ESA-2024-09 On April 4, 2024, the Go Project announced CVE-2023-45288, which can lead to CPU exhaustion as an attacker can cause an HTTP/2 endpoint to read arbitrary amounts of header data. In an on-prem...

APM Server 8.12.1 Security Update (ESA-2024-03)

APM Server Insertion of Sensitive Information into Log File ESA-2024-03 An issue was discovered whereby APM Server could log at ERROR level, a response from Elasticsearch indicating that indexing the document failed and that response would contain parts of the original document. Depending on the...

Kibana 8.11.1 Security Update (ESA-2023-25)

Kibana Insertion of Sensitive Information into Log File ESA-2023-25 An issue was discovered by Elastic whereby sensitive information may be recorded in Kibana logs in the event of an error. Elastic has released Kibana 8.11.1 which resolves this issue. The error message recorded in the log may...

Elastic Stack 7.14.0 Security Update

Elasticsearch Document/Field Level Security issue ESA-2021-18 A flaw was discovered in Elasticsearch where document and field level security was not applied to searchable snapshots. This could lead to an authenticated user gaining access to information that they are unauthorized to view. Affected...