Beats, Elastic Agent, APM Server, and Fleet Server 8.10.1 Security Update - Improper Certificate Validation issue (ESA-2023-16)

Beats, Elastic Agent, APM Server, and Fleet Server Improper Certificate Validation issue ESA-2023-16 It was discovered that when acting as TLS clients, Beats, Elastic Agent, APM Server, and Fleet Server did not verify whether the server certificate is valid for the target IP address; however,...

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...

Elastic APM .NET Agent 1.10.0 Security Update

Elastic APM .NET Agent information disclosure ESA-2021-14 The Elastic APM .NET Agent can leak sensitive HTTP header information when logging the details during an application error. Normally, the APM agent will sanitize sensitive HTTP header details before sending the information to the APM serve...

Enterprise Search 7.7.0 security update

Elastic App Search Cross Site Scripting flaw ESA-2020-04 Elastic App Search versions before 7.7.0 contain a cross site scripting XSS flaw when displaying document URLs in the Reference UI. If the Reference UI injects a URL into a result, that URL will be rendered by the web browser. If an attacke...

Elastic Cloud on Kubernetes 1.1.0 security update

Elastic Cloud on Kubernetes insecure password generation ESA-2020-03 Elastic Cloud on Kubernetes ECK versions prior to 1.1.0 generate passwords using a weak random number generator. If an attacker is able to determine when the current Elastic Stack cluster was deployed they may be able to more...

Elastic Stack 7.4.1 security update

Logstash Beats input denial of service flaw ESA-2019-14 A denial of service flaw was found in the Logstash beats input plugin. An unauthenticated user who is able to connect to the port the Logstash beats input could send a specially crafted network packet that would cause Logstash to stop...

Elasticsearch 8.19.20, 9.4.5 Security Update (ESA-2026-76)

Allocation of Resources Without Limits or Throttling in Elasticsearch Leading to Denial of Service A flaw in Elasticsearch allows an authenticated user holding only read privileges to submit a small search request containing a crafted user-supplied input. Processing that input causes a specific...

Elastic Defend 8.19.13, 9.2.7, 9.3.2 Security Update (ESA-2026-46)

Incorrect Authorization in Elastic Defend Leading to Information Disclosure Incorrect Authorization CWE-863 in Elastic Defend can lead to unauthorized information disclosure via Accessing Functionality Not Properly Constrained by ACLs CAPEC-1. Under certain conditions, a low-privileged...

Elastic Package Registry 1.38.0 Security Update (ESA-2026-27)

Improper Verification of Cryptographic Signature in Elastic Package Registry Leading to Package Integrity Bypass Improper Verification of Cryptographic Signature CWE-347 in Elastic Package Registry could allow an attacker positioned to intercept network traffic, or to otherwise influence the...

Logstash 8.19.10, 9.1.10, 9.2.4 Security Update (ESA-2026-06)

Sensitive Information in Resource Not Removed Before Reuse in Logstash Leading to Access to Sensitive Information Dependency on Vulnerable Third-Party Component CWE-1395 exists in org.lz4:lz4-java decompression library used by logstash-integration-kafka plugin in Logstash that could allow an...

Packetbeat 8.19.10, 9.1.10, 9.2.4 Security Update (ESA-2026-02)

Improper Validation of Array Index in Packetbeat Leading to Overflow Buffers ESA-2026-02 Improper Validation of Array Index CWE-129 in Packetbeat’s MongoDB protocol parser can allow an attacker to cause Overflow Buffers CAPEC-100 through specially crafted network traffic. This requires an attacke...

Kibana 8.19.9, 9.1.9, and 9.2.3 Security Update (ESA-2025-36)

Kibana Allocation of Resources Without Limits or Throttling ESA-2025-36 Allocation of Resources Without Limits or Throttling CWE-770 in Kibana can allow a low-privileged authenticated user to cause Excessive Allocation CAPEC-130 of computing resources and a denial of service DoS of the Kibana...

Kibana 8.19.7, 9.1.7, and 9.2.1 Security Update (ESA-2025-24)

Kibana Origin Validation Error ESA-2025-24 Origin Validation Error in Kibana can lead to Server-Side Request Forgery via a forged Origin HTTP header processed by the Observability AI Assistant. Affected Versions: 8.12.0 up to and including 8.19.6 9.1.0 up to and including 9.1.6 9.2.0 Affected...

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...

Beats (Windows Installer) 8.18.6, 8.19.3, 9.0.6, & 9.1.0 Security Update (ESA-2025-12)

Beats Uncontrolled Search Path Element can lead to Local Privilege Escalation LPE when using the Windows Installer ESA-2025-12 An uncontrolled search path element vulnerability can lead to local privilege Escalation LPE via Insecure Directory Permissions. The vulnerability arises from improper...

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...

Elastic Agent / Elastic Endpoint Security Security Update (ESA-2025-03)

Elastic Agent / Elastic Endpoint Security local API key disclosure ESA-2025-03 Exposure of sensitive information to local unauthorized actors in Elastic Agent and Elastic Security Endpoint can lead to loss of confidentiality and impersonation of Endpoint to the Elastic Stack. This issue was...

Kibana 8.16.4 and 8.17.2 Security Update (ESA-2025-02)

Kibana Prototype Pollution can lead to code injection ESA-2025-02 Prototype Pollution in Kibana can lead to code injection via unrestricted file upload combined with path traversal. Affected Versions: Kibana versions 8.16.1 up to and including 8.16.3, and 8.17.0 up to and including 8.17.1 Solutio...

Elastic Defend 8.13.3 Security Update (ESA-2024-24)

Elastic Defend Improper Handling of Alternate Encoding Leads to Crash ESA-2024-24 Improper handling of alternate encoding occurs when Elastic Defend on Windows systems attempts to scan a file or process encoded as a multibyte character. This leads to an uncaught exception causing Elastic Defend t...

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 7.17.23/8.14.0 Security Update (ESA-2024-16)

Kibana Denial of Service issue ESA-2024-16 An issue was discovered in Kibana where a user with Viewer role could cause a Kibana instance to crash by sending a large number of maliciously crafted requests to a specific endpoint. Affected Versions: Kibana 8.x versions prior to 8.14.0 and Kibana 7.x...

Elastic Cloud Enterprise 3.7.2 Security Update (ESA-2024-18)

ECE Improper Authorization ESA-2024-18 It was identified that under certain specific preconditions, an API key that was originally created with a specific privileges could be subsequently used to create new API keys that have elevated privileges. Affected Versions: ECE versions after 3.0.0 and...

Elasticsearch 8.11.1 Security Update (ESA-2024-05)

Elasticsearch Uncaught Exception ESA-2024-05 An uncaught exception in Elasticsearch = 8.4.0 and = 8.4.0 and 8.11.1 Solutions and Mitigations: The issue is resolved in version 8.11.1. This requires the attachment processor to be enabled. Users unable to upgrade can ensure that the attachment...

Logstash 8.11.1 Security Update (ESA-2023-26)

Logstash Insertion of Sensitive Information into Log File ESA-2023-26 An issue was identified by Elastic whereby sensitive information is recorded in Logstash logs under specific circumstances. The prerequisites for the manifestation of this issue are: Logstash is configured to log in JSON format...

Elasticsearch 8.9.2 and 7.17.13 Security Update

Elasticsearch Insertion of sensitive information in audit logs ESA-2023-12 Elasticsearch generally filters out sensitive information and credentials before logging to the audit log. It was found that this filtering was not applied when requests to Elasticsearch use certain deprecated URIs for API...

Apache Log4j2 Remote Code Execution (RCE) Vulnerability - CVE-2021-44228 - ESA-2021-31

Subject: Apache Log4j2 Vulnerability - CVE-2021-44228, CVE-2021-45046, CVE-2021-45105, CVE-2021-44832 - ESA-2021-31 ​​Note - We will update this announcement with new details as they emerge from our analysis. Please check back periodically. Update Log Dec 16, 2021 - 04:20 UTC - Update Summary: EC...

Elastic Stack 6.8.8 and 7.6.2 security update

Elasticsearch API key privilege escalation ESA-2020-02 Elasticsearch versions from 6.7.0 to 6.8.7 and 7.0.0 to 7.6.1 contain a privilege escalation flaw if an attacker is able to create API keys. An attacker who is able to generate an API key can perform a series of steps that result in an API ke...

Elastic Stack 6.8.2 and 7.2.1 security update

Elasticsearch race condition flaw ESA-2019-07 A race condition flaw was found in the response headers Elasticsearch returns to a request. On a system with multiple users submitting requests, it could be possible for an attacker to gain access to response header containing sensitive data from...

Elastic Stack 6.4.3 and 5.6.13 security update

Elasticsearch information disclosure ESA-2018-16 Elasticsearch Security versions 6.4.0 to 6.4.2 contain an error in the way request headers are applied to requests when using the Active Directory, LDAP, Native, or File realms. A request may receive headers intended for another request if the same...

Elastic Stack 6.3.0 and 5.6.10 Security Update

Elasticsearch Information Exposure Vulnerability ESA-2018-10 In Elasticsearch versions 6.0.0-beta1 to 6.2.4 a disclosure flaw was found in the snapshot API. When the accesskey and securitykey parameters are set using the snapshot API they can be exposed as plain text by users able to query the...

Kibana 8.19.20, 9.4.5, 9.5.1 Security Update (ESA-2026-126)

Authorization Bypass Through User-Controlled Key in Kibana Leading to Cross-Space Access to Machine Learning Trained Models Description: Authorization Bypass Through User-Controlled Key CWE-639 in Kibana can lead to unauthorized cross-space access via Accessing Functionality Not Properly...

Kibana 8.19.19 and 9.4.5 Security Update (ESA-2026-86)

Missing Authorization in Kibana Leading to Cross-User Information Disclosure and Data Tampering The state that Kibana stores for an Observability Onboarding flow is not bound to the user who created the flow, and the routes that read and update that state do not verify ownership. An authenticated...

Kibana 8.19.15, 9.3.4 Security Update (ESA-2026-49)

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 bulk deletion...

Elasticsearch 8.19.8, 9.1.8 Security Update (ESA-2026-18)

Deserialization of Untrusted Data in Elasticsearch Leading to Remote Code Execution Dependency on Vulnerable Third-Party Component CWE-1395 exists in PyTorch used by the machine learning model loading component in Elasticsearch that can allow an attacker to achieve remote code execution via Objec...

Kibana 8.19.9, 9.1.9, and 9.2.3 Security Update (ESA-2025-34)

Kibana Improper Neutralization of Input During Web Page Generation 'Cross-site Scripting' ESA-2025-34 Improper neutralization of input during web page generation 'Cross-site Scripting' CWE-79 allows an authenticated user to embed a malicious script in content that will be served to web browsers...

Kibana 9.0.6, 9.1.3 Security Update (ESA-2025-13)

Kibana privilege escalation viareportinguser role ESA-2025-13 Incorrect authorization in Kibana can lead to privilege escalation via the built-in reportinguser role which incorrectly has the ability to access all Kibana Spaces. Affected Versions: Kibana versions starting from and including 9.0.0,...

Elastic Response to Blog ‘EDR 0-Day Vulnerability’

Updated: August 29, 2025 Elastic has been directly engaging with the independent researcher. After evaluating additional information provided by the researcher, our original assessment still stands. To confirm we are responsibly assessing this report and providing an unbiased perspective, we are...

Kibana 8.17.6, 8.18.1, or 9.0.1 Security Update (ESA-2025-07)

Kibana arbitrary code execution via prototype pollution ESA-2025-07 A Prototype pollution vulnerability in Kibana leads to arbitrary code execution via crafted HTTP requests to machine learning and reporting endpoints. Affected Versions: 8.3.0 to 8.17.5, and 8.18.0, and 9.0.0 Affected...

Kibana 7.17.24 and 8.12.0 Security Update (ESA-2024-20)

Kibana Unrestricted Upload of File with Dangerous Type Can Lead to XSS ESA-2024-20 Unrestricted upload of a file with dangerous type in Kibana can lead to arbitrary JavaScript execution in a victim’s browser XSS via crafted HTML and JavaScript files. The attacker must have access to the Synthetic...

Logstash 8.15.1 Security Update (ESA-2024-35)

Logstash Uncontrolled Resource Consumption vulnerability ESA-2024-35 On August 19, 2024, Floraison announced CVE-2024-43380, which affects fugit "natural" parser. The parser turns natural language into a cron date and was found to accept any length of input, causing an uncontrolled resource...

Kibana 8.17.3 / 8.16.6 Security Update (ESA-2025-06)

Kibana arbitrary code execution via prototype pollution ESA-2025-06 Prototype pollution in Kibana leads to arbitrary code execution via a crafted file upload and specifically crafted HTTP requests. In Kibana versions = 8.15.0 and = 8.15.0 and = 8.17.0 and 8.17.3 Solutions and Mitigations: Users...

Kibana 7.17.23/8.15.0 Security Updates (ESA-2024-32, ESA-2024-33)

Kibana allocation of resources without limits or throttling leads to crash ESA-2024-33 An allocation of resources without limits or throttling in Kibana can lead to a crash caused by a specially crafted request to /api/metrics/snapshot. This can be carried out by users with read access to the...

Elasticsearch 7.17.21 and 8.13.3 Security Update (ESA-2024-25)

Elasticsearch allocation of resources without limits or throttling leads to crash ESA-2024-25 An allocation of resources without limits or throttling in Elasticsearch can lead to an OutOfMemoryError exception resulting in a crash via a specially crafted query using an SQL function. Affected...

Kibana 8.14.0 Security Update (ESA-2024-15)

Kibana Broken Access Control issue ESA-2024-15 A flaw was discovered in Kibana, allowing view-only users of alerting to use the runsoon API making the alerting rule run continuously, potentially affecting the system availability if the alerting rule is running complex queries. Affected Versions:...

Elastic 7.17.9, 8.5.0 and 8.6.1 Security Update

Kibana authenticated Denial of Service issue ESA-2023-02 A flawCVE-2022-38900 was discovered in one of Kibana’s third party dependencies, that could allow an authenticated user to to perform a request that crashes the Kibana server process. Affected Versions: Kibana Versions 7.0.0 through 7.17.8...

Endpoint Security 8.4.1 Security Update

Elastic Endpoint Security Local Privilege Escalation issue ESA-2022-14 An issue was discovered in the rollback feature of Elastic Endpoint Security for Windows, which could allow unprivileged users to elevate their privileges to those of the LocalSystem account. Affected Versions: Version 8.4.0...

Elastic Cloud Enterprise 3.1.1 Security Update

Elastic Cloud Enterprise Sensitive information disclosure issue ESA-2022-11 A flaw was discovered in ECE before 3.1.1 that could lead to the disclosure of the SAML signing private key used for the RBAC features, in deployment logs in the Logging and Monitoring cluster. Affected Versions: Elastic...

Kibana 7.17.0 Security Update

Kibana Cross-site scripting issue ESA-2022-01 An XSS vulnerability was found in Kibana index patterns. Using this vulnerability, an authenticated user with permissions to create index patterns can inject malicious javascript into the index pattern which could execute against other users. Affected...

APM Java Agent Security Update

APM Java Agent Local Privilege Escalation issue ESA-2021-29 A local privilege escalation issue was found with the APM Java agent, where a user on the system could attach a malicious file to an application running with the APM Java agent. Using this vector, a malicious or compromised user account...

Elastic Cloud Enterprise security update

Elastic Cloud Enterprise security update ESA-2021-17 Elastic Cloud Enterprise has the Elasticsearch “anonymous” user enabled by default in deployed clusters. While in the default setting the anonymous user has no permissions and is unable to successfully query any Elasticsearch APIs, an attacker...