Elasticsearch 8.19.19, 9.3.8, 9.4.4 Security Update (ESA-2026-68)

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 search request submitted by a low-privileged authenticated user. A user with read-level index access can submit a request that...

Kibana 8.19.19, 9.3.8, 9.4.4 Security Update (ESA-2026-63)

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 low-privileged user can exploit an uncontrolled resource consumption vulnerability in...

Elasticsearch 8.19.15, 9.2.9, 9.3.4 Security Update (ESA-2026-60)

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 user with search privileges can submit a specially crafted search request that causes a da...

Elasticsearch 8.19.18, 9.3.7, 9.4.4 Security Update (ESA-2026-57)

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 with permission to execute EQL sequence queries against ...

Elasticsearch 8.13.0/7.17.23 Security Update (ESA-2024-12)

Elasticsearch elasticsearch-certutil csr fails to encrypt private key ESA-2024-12 It was discovered by Elastic engineering that when elasticsearch-certutil CLI tool is used with the csr option in order to create a new Certificate Signing Requests, the associated private key that is generated is...

Kibana 7.17.22 / 8.14.0 Security Update (ESA-2024-17)

Kibana RCE due to chromium type confusion ESA-2024-17 On March 26, 2024, a type confusion vulnerability was found in WebAssembly in Google Chrome version prior to 123.0.6312.86 which allows a remote attacker to execute arbitrary code via a crafted HTML page. Kibana includes a bundled version of...

Kibana 8.12.1, 7.17.18 Security Update (ESA-2024-04)

Kibana heap buffer overflow vulnerability ESA-2024-04 This issue requires authenticated access to Kibana. On Dec 21, 2023, Google Chrome announced CVE-2023-7024, described as “Heap buffer overflow in WebRTC in Google Chrome prior to 120.0.6099.129 allowed a remote attacker to potentially exploit...

Elasticsearch 7.17.14 / 8.10.3 Security Update (ESA-2023-24)

Elasticsearch Improper Handling of Exceptional Conditions ESA-2023-24 It was identified that malformed scripts used in the script processor of an Ingest Pipeline could cause an Elasticsearch node to crash when calling the Simulate Pipeline API. Affected Versions: Elasticsearch versions on or afte...

Elasticsearch 8.9.0, 7.17.13 Security Update

Elasticsearch uncontrolled resource consumption ESA-2023-13 An issue has been identified with how Elasticsearch handled incoming requests on the HTTP layer. An unauthenticated user could force an Elasticsearch node to exit with an OutOfMemory error by sending a moderate number of malformed HTTP...

APM Java Agent Security Update

APM Java Agent Local Privilege Escalation issue ESA-2021-30 A local privilege escalation issue was found with the APM Java agent, where a user on the system could attach a malicious plugin to an application running the APM Java agent. By using this vulnerability, an attacker could execute code at...

Beats 5.6.4 security update

Packetbeat denial of service ESA-2017-21 Packetbeat versions prior to 5.6.4 are affected by a denial of service flaw in the PostgreSQL protocol handler. If Packetbeat is listening for PostgreSQL traffic and a user is able to send arbitrary network traffic to the monitored port, the attacker could...

Logstash 5.0.1 released with a security patch

Hi all, we would like to announce that Logstash 5.0.1 has been released with an important security patch. Prior to Logstash version 5.0.1, Elasticsearch Output plugin when updating connections after sniffing, would log to file HTTP basic auth credentials. We advise our users using Logstash and...

Logstash 2.2.1 Elasticsearch Output Vulnerability

Logstash version 2.2.1 is vulnerable to a man in the middle attack when used with Elasticsearch output. In version 2.2.1, the config which enables SSL/TLS default has been disabled inadvertently, so a malicious user could access payload data sent via HTTP during the initial handshake. This has be...

Logstash CSV Output Vulnerability - CVE pending

Summary: Logstash 2.2 and prior versions are vulnerable to a formula based injection, when using the CSV output plugin. This plugin allows users to export data in comma separated values and is susceptible to an attack if the values contained a spreadsheet formula. This vulnerability is not presen...

Kibana Cross-Site Scripting Vulnerability CVE-2015-4093

Summary: Kibana versions 4.0.0, 4.0.1 and 4.0.2 are vulnerable to a cross-site scripting XSS attack. The attack allows execution of arbitrary JavaScript in the context of the user’s browser. We have been assigned CVE-2015-4093 for this issue. Fixed versions: Version 4.0.3 has addressed the...

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: Fixes should be back-ported to all maintained versions unless there is a...

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 8.19.19, 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-2026-135)

Execution with Unnecessary Privileges in Kibana Leading to Information Disclosure Execution with Unnecessary Privileges CWE-250 in the Kibana machine learning feature can lead to information disclosure via Privilege Abuse CAPEC-122. An operation available to users holding only read access to the...

Kibana 9.4.5, 9.5.1 Security Update (ESA-2026-115)

Uncaught Exception in Kibana Leading to Denial of Service Uncaught Exception CWE-248 in Kibana can lead to a denial of service via Input Data Manipulation CAPEC-153. An authenticated user holding only the low-privileged feature access required to use the Observability AI Assistant can submit a...

Elasticsearch 8.19.20, 9.3.0 Security Update (ESA-2026-47)

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 a denial of service via Excessive Allocation CAPEC-130. A user with elevated privileges can submit a special...

Kibana 8.19.21, 9.4.6, 9.5.2 Security Update (ESA-2026-144)

Missing Authorization in Kibana Leading to Information Disclosure Missing Authorization CWE-862 in Kibana can lead to information disclosure via Privilege Abuse CAPEC-122. An authorization control was not applied to an internal Kibana APM integration function, allowing any authenticated Kibana us...

Elasticsearch 8.19.20, 9.4.5, 9.5.1 Security Update (ESA-2026-78)

Uncontrolled Recursion in Elasticsearch Leading to Denial of Service A flaw in Elasticsearch allows a low-privileged authenticated user to submit a single request containing a crafted user-supplied input. A specific internal component validates the input using a recursive routine and applies no...

Elasticsearch 8.19.20, 9.4.5, 9.5.1 Security Update (ESA-2026-120)

Memory Allocation with Excessive Size Value in Elasticsearch Highlighting Leading to Denial of Service Elasticsearch does not enforce an upper bound on a user-supplied count accepted by a search highlighting option, and the allocation derived from that count is not accounted against any circuit...

Elasticsearch 8.19.20, 9.4.5 Security Update (ESA-2026-133)

Uncontrolled Recursion in Elasticsearch Wildcard Matching Leading to Denial of Service Description: Uncontrolled Recursion CWE-674 in the Elasticsearch wildcard matching helper can lead to a denial of service via Excessive Allocation CAPEC-130. The matcher used to resolve wildcard patterns agains...

Elasticsearch 8.19.20, 9.4.5 Security Update (ESA-2026-119)

Uncontrolled Recursion in Elasticsearch Leading to Denial of Service Uncontrolled Recursion CWE-674 in Elasticsearch can lead to denial of service via Input Data Manipulation CAPEC-153. An authenticated user holding only low-privileged index creation permissions can submit a single request...

Elasticsearch 8.19.19, 9.3.8, 9.4.4 Security Update (ESA-2026-75)

Uncontrolled Recursion in Elasticsearch Leading to Denial of Service A flaw in Elasticsearch allows an authenticated user with the privileges required to invoke the simulate pipeline API endpoint to submit a request that causes a self-referential data structure to be created. When a specific...

Elasticsearch 8.9.1 / 7.17.13 Security Update

Elasticsearch StackOverflow vulnerability ESA-2023-14 A flaw was discovered in Elasticsearch, affecting the search API that allowed a specially crafted query string to cause a Stack Overflow and ultimately a Denial of Service. Affected Versions: Elasticsearch versions from 7.0.0 to 7.17.12 and fr...

Beats 7.10.1 Security Update

Beats Denial of Service issue ESA-2020-16 A denial of service flaw when parsing malformed TLS public keys was discovered in Go, the language used to implement Beats. If Beats is configured to listen for Syslog over TLS, or if Beats is making outbound connections over HTTPS, a remote attacker coul...

Elastic Stack 7.5.0 security update

Metricbeat and Filebeat DSA public key panic ESA-2019-15 A denial of service flaw when parsing malformed DSA public keys was discovered in Go, the language used to implement Beats. If Metricbeat or Filebeat are configured to accept incoming TLS connections with client authentication enabled, a...

Elastic Stack 5.5.1 and Kibana 4.6.5 security update

Kibana Node.js security flaw ESA-2017-14 The version of Node.js shipped in all versions of Kibana prior to 5.5.1 contains a Denial of Service flaw in it's HashTable random seed. This flaw could allow a remote attacker to consume resources within Node.js preventing Kibana from servicing requests...

Kibana 5.0.1 and 4.6.3 released with a fix for an open redirect vulnerability

Kibana versions 5.0.1 and 4.6.3 fix an open redirect vulnerability in the short URL feature that would allow an attacker to create a redirect from the Kibana domain to a different website. We’ve assigned this vulnerability the identifier ESA-2016-08. Thank you to the GE Digital Security Team for...

Kibana 4.4.1, 4.3.2, 4.1.5 - Updated node.js versions due to upstream vulnerabilities

Summary: The bundled versions of node.js in Kibana contain HTTP-related security vulnerabilities. Fixed versions of node.js were recently released. For the original node.js security announcement, see https://nodejs.org/en/blog/vulnerability/february-2016-security-releases/ Fixed versions: Kibana...

Elasticsearch directory traversal vulnerability CVE-2015-5531

Summary Elasticsearch versions from 1.0.0 to 1.6.0 are vulnerable to a directory traversal attack that allows an attacker to retrieve files that are readable by the Elasticsearch JVM process. We have been assigned CVE-2015-5531 for this issue. Fixed versions Versions 1.6.1 and 1.7.0 address the...

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: Fixes should be back-ported to all maintained versions unless there is a justified reason...

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: Fixes should be back-ported to all maintained versions unless there is a...

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...

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...

Kibana 9.4.6, 9.5.1 Security Update (ESA-2026-149)

Missing Authorization in Kibana Leading to Unauthorized Disclosure of Fleet Deployment Metadata Missing Authorization CWE-862 in Kibana can lead to information disclosure via Exploiting Incorrectly Configured Access Control Security Levels CAPEC-180. An authenticated user holding minimal...

Kibana 8.19.17, 9.3.0 Security Update (ESA-2026-31)

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 permissions could submit a...

Kibana 8.19.17, 9.3.6, 9.4.3 Security Update (ESA-2026-94)

Relative Path Traversal in Kibana Fleet Leading to Unauthorized Deletion of Users and Other Resources Description: Relative Path Traversal CWE-23 in Kibana can lead to the unauthorized deletion of Kibana resources via Relative Path Traversal CAPEC-139. Kibana Fleet accepted a user-supplied...

Elasticsearch 8.19.20, 9.4.5, 9.5.1 Security Update (ESA-2026-80)

Memory Allocation with Excessive Size Value in Elasticsearch Leading to Denial of Service Elasticsearch does not validate a size value taken from a user-supplied input before that value is used to reserve memory for an internal data structure. An authenticated user holding only read privileges ca...

Elasticsearch 8.19.20, 9.4.5, 9.5.1 Security Update (ESA-2026-79)

Memory Allocation with Excessive Size Value in Elasticsearch Leading to Denial of Service A flaw in Elasticsearch allows a low-privileged authenticated user to submit a single small request containing a forged opaque identifier. Elasticsearch decodes and deserializes the identifier before...

Elasticsearch 8.18.0, 9.0.0 Security Update (ESA-2026-111)

Memory Allocation with Excessive Size Value in Elasticsearch Leading to Denial of Service Memory Allocation with Excessive Size Value CWE-789 in the ES|QL query processing of Elasticsearch can lead to denial of service via Excessive Allocation CAPEC-130. An authenticated user able to submit ES|QL...

Elastic Cloud on Kubernetes 3.5.0 Security Update (ESA-2026-121)

Unintended Proxy or Intermediary in Elastic Cloud on Kubernetes Leading to Cross-Namespace Secret Disclosure The Elastic Cloud on Kubernetes ECK operator reads a list of secret references from an annotation on secrets it manages, and it accepts the namespace recorded in each reference without...

Elasticsearch Security Statement regarding CVE-2022-1471

Elasticsearch is not affected by this issue. Elasticsearch is not affected by the issue described in CVE-2022-1471 as, in general, it does not use Snakeyaml to parse YAML. Summary Elasticsearch supports YAML as a format for search queries, and it also uses YAML for its configuration files i.e...

X-Pack Security 5.6.0 and 5.5.3 security update

X-Pack Security permission issue ESA-2017-18 An error was found in the X-Pack Security privilege enforcement. If a user has either ‘delete’ or ‘index’ permissions on an index in a cluster, they may be able to issue both delete and index requests against that index. Previously if a user had bulk...

Protect your data from ransom attacks

I wanted to bring attention to two blog posts we have done recently in response to the recent set of data ransom attacks affecting Elasticsearch and other systems. The two are: For Elasticsearch: Protecting Against Attacks that Hold Your Data for Ransom For Kibana: Guarding Kibana from Data...

Kibana 5.0.2 released with a fix for improper authentication

With X-Pack installed, operations in the Advanced Settings panel of the Management tab and operations from the short URL service were performed as the "Kibana Server" user regardless of the user that is currently authenticated. As a result, a user that was defined as read-only could make changes ...

Logstash 2.3.2 Vulnerability with Netflow codec plugin

Hi all, we've published ESA-2016-06 for a vulnerability in netflow codec plugin for Logstash 2.3.2. Thanks to Jorrit Folmer maintainer of netflow codec for reporting and fixing this issue. Details below: Vulnerability Summary: In Logstash versions prior to 2.3.3, when using the Netflow Codec...