Jenkins Keycloak Authentication Plugin 2.4.1 and earlier does not restrict the redirect URL after login, allowing attackers to perform phishing attacks.

The OAuth authorization endpoint in Jenkins Bitbucket Server Integration Plugin 6.0.1 and earlier reads the oauthcallback URL from the submitted form rather than from the server-side stored request token, allowing attackers to hijack the OAuth flow and obtain an access token on behalf of the victim.

Jenkins Robot Framework Plugin 6.2.2 and earlier does not check that the archive directory configured for Robot Framework report files is contained within the build directory on the Jenkins controller, allowing attackers with Item/Configure permission to create or replace arbitrary files on the Jenkins controller file system with attacker-specified content, which can lead to remote code execution.

Jenkins Coverage Plugin 3.3358.v9487dde48783 and earlier does not validate the coverage results ID when a job configuration is submitted through the REST API, allowing attackers with Item/Configure permission to use a javascript: scheme URL as identifier, resulting in a stored cross-site scripting (XSS) vulnerability.

Jenkins OWASP Dependency-Check Plugin 5.6.4 and earlier does not escape CWE values from Dependency-Check reports on the Jenkins UI, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Item/Configure permission.

Jenkins Warnings Plugin 13.10258.va17d49a78c3b and earlier does not validate the analysis results ID when a job configuration is submitted through the REST API, allowing attackers with Item/Configure permission to use a javascript: scheme URL as identifier, resulting in a stored cross-site scripting (XSS) vulnerability.

Jenkins GitLab Plugin 1.2149.vcfc32c82bf7f and earlier caches the GitLab API client built for alternative GitLab API token credentials under a cache key derived from the credentials ID alone, omitting the folder in which the credentials are resolved, allowing attackers with Item/Configure permission to access GitLab API token credentials they are not entitled to use.

Jenkins Pipeline: Groovy Libraries Plugin 805.vafc79344957d and earlier does not restrict the library path provided to the library Pipeline step to a relative path inside the SCM checkout, and follows symbolic links to locations outside of the SCM checkout when retrieving the library, resulting in a path traversal vulnerability, allowing attackers able to configure Pipelines to read files in a resources directory and to delete files in a test directory on the Jenkins controller file system.

Jenkins Pipeline: Multibranch Plugin 841.vec5b9e1806ec and earlier does not set the appropriate context for credentials lookup in the resolveScm Pipeline step, allowing attackers with Item/Configure permission to access and capture credentials they are not entitled to.

Jenkins Script Security Plugin 1415.v9af9b3ac253d and earlier does not check calls from sandboxed scripts to methods added dynamically to a class at runtime, allowing attackers with permission to define and run sandboxed scripts, including Pipelines, to bypass the sandbox protection and execute code outside the sandbox.

Jenkins Script Security Plugin 1415.v9af9b3ac253d and earlier downloads a JAR file specified by URL twice, confirming the approval of the first download and loading the classpath entries from the second, allowing attackers able to define classpath entries to execute arbitrary code in the context of the Jenkins controller JVM.

Jenkins Script Security Plugin 1415.v9af9b3ac253d and earlier automatically approves the classpath entries in an item configuration when a user with Overall/Administer permission copies the item, or updates that configuration through the REST API or CLI, allowing attackers able to define classpath entries to execute arbitrary code in the context of the Jenkins controller JVM.

Jenkins Script Security Plugin 1415.v9af9b3ac253d and earlier does not reject the @GroovyASTTransformationClass annotation, allowing attackers with permission to define and run sandboxed scripts, including Pipelines, to run an arbitrary AST transformation at compile time, bypassing the sandbox protection and executing arbitrary code in the context of the Jenkins controller JVM.

Jenkins Script Security Plugin 1415.v9af9b3ac253d and earlier does not reject @Builder annotations whose builderStrategy member names an arbitrary class, allowing attackers with permission to define and run sandboxed scripts, including Pipelines, to execute code outside the sandbox if a suitable class is present on the classpath of the component that evaluates the script.

Jenkins Script Security Plugin 1415.v9af9b3ac253d and earlier checks the operations Groovy will perform with the elements it reads from a collection that a sandboxed script casts to another type but performs the cast on the collection itself, allowing attackers with permission to define and run sandboxed scripts, including Pipelines, to bypass the sandbox protection and execute arbitrary code in the context of the Jenkins controller JVM.

Jenkins Script Security Plugin 1415.v9af9b3ac253d and earlier does not intercept operations performed on a null receiver (method calls, property and attribute accesses, and array accesses), allowing attackers with permission to define and run sandboxed scripts, including Pipelines, to bypass the sandbox protection and execute arbitrary code in the context of the Jenkins controller JVM.

Jenkins Script Security Plugin 1415.v9af9b3ac253d and earlier does not check the method called through the proxy created when a sandboxed script coerces a value to an interface, if the value inherits a method of the same name as an interface method, allowing attackers with permission to define and run sandboxed scripts, including Pipelines, to bypass the sandbox protection and execute arbitrary code in the context of the Jenkins controller JVM.

Jenkins is an open source automation server which enables developers around the world to reliably build, test, and deploy their software.

The following releases contain fixes for security vulnerabilities:

Bitbucket Push and Pull Request Plugin 4.1.0 Bitbucket Server Integration Plugin 6.0.2 Coverage Plugin 3.3361.v0626103a67e6 Gitee Plugin 1304.v2702f1d71cde GitLab Plugin 1.2152.veec0897048b0 Gradle Plugin 2.20.1253.vc116f0763aeb Keycloak Authentication Plugin 2.4.2 OWASP Dependency-Check Plugin 5.6.5 Pipeline: Groovy Libraries Plugin 806.v408277b33d1d Pipeline: Multibranch Plugin 842.v3ab59b57be6e Robot Framework Plugin 6.3.0 Script Security Plugin 1422.v06869826dd9b Warnings Plugin 13.10259.v80f407cb03ae

Summaries of the vulnerabilities are below. More details, severity, and attribution can be found here: https://www.jenkins.io/security/advisory/2026-09-16/

We provide advance notification for security updates on this mailing list: https://groups.google.com/d/forum/jenkinsci-advisories

If you discover security vulnerabilities in Jenkins, please report them as described here: https://www.jenkins.io/security/#reporting-vulnerabilities

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SECURITY-3929 / CVE-2026-92122 Script Security Plugin provides a sandbox feature that allows running user-provided scripts safely by intercepting and checking potentially unsafe operations.

Groovy coerces a value to an interface by creating a proxy that forwards each interface method call to a method of the same name on that value.

Script Security Plugin 1415.v9af9b3ac253d and earlier does not check the method that the proxy calls when the value inherits a method of the same name as an interface method.

This allows attackers with permission to define and run sandboxed scripts, including Pipelines, to bypass the sandbox protection and execute arbitrary code in the context of the Jenkins controller JVM.

SECURITY-3931 / CVE-2026-92123 Script Security Plugin provides a sandbox feature that allows running user-provided scripts safely by intercepting and checking potentially unsafe operations.

Script Security Plugin 1415.v9af9b3ac253d and earlier does not intercept operations performed on a null receiver (method calls, property and attribute accesses, and array accesses).

This allows attackers with permission to define and run sandboxed scripts, including Pipelines, to bypass the sandbox protection and execute arbitrary code in the context of the Jenkins controller JVM.

SECURITY-3923 / CVE-2026-92124 Script Security Plugin provides a sandbox feature that allows running user-provided scripts safely by intercepting and checking potentially unsafe operations.

Groovy casts a collection to another type using the elements of that collection, either passing them to a constructor of that type or casting each of them.

Script Security Plugin 1415.v9af9b3ac253d and earlier checks the operations Groovy will perform with the elements it reads from the collection, but performs the cast on the collection itself rather than on the elements it checked.

This allows attackers with permission to define and run sandboxed scripts, including Pipelines, to have the cast performed on different elements by overriding the methods of a collection, bypassing the sandbox protection and executing arbitrary code in the context of the Jenkins controller JVM.

SECURITY-3925 (1) / CVE-2026-92125 Script Security Plugin provides a sandbox feature that allows running user-provided scripts safely by intercepting and checking potentially unsafe operations.

Script Security Plugin 1415.v9af9b3ac253d and earlier does not reject the @GroovyASTTransformationClass annotation, which a script can use to link an annotation type it declares to an arbitrary AST transformation, causing Groovy to run that transformation at compile time, before the sandbox is applied.

This allows attackers with permission to define and run sandboxed scripts, including Pipelines, to bypass the sandbox protection and execute arbitrary code in the context of the Jenkins controller JVM.

SECURITY-3925 (2) / CVE-2026-92126 Script Security Plugin provides a sandbox feature that allows running user-provided scripts safely by intercepting and checking potentially unsafe operations.

Groovy's @Builder annotation generates builder code at compile time using the strategy class named by its builderStrategy member, which can be one of the strategies provided by Groovy or a custom implementation.

Script Security Plugin 1415.v9af9b3ac253d and earlier does not reject @Builder annotations whose builderStrategy member names an arbitrary class, which causes Groovy to instantiate that class at compile time, before the sandbox is applied.

This may allow attackers with permission to define and run sandboxed scripts, including Pipelines, to execute code outside the sandbox, in the rare case that a suitable class is present on the classpath of the component that evaluates the script.

SECURITY-3897 / CVE-2026-92127 Script Security Plugin allows Groovy scripts to load classpath entries from JAR files, which administrators must approve before any script is allowed to use them.

Script Security Plugin 1415.v9af9b3ac253d and earlier automatically approves the classpath entries in an item configuration when a user with Overall/Administer permission copies the item, or updates that configuration through the REST API or CLI, allowing attackers able to define classpath entries to execute arbitrary code in the context of the Jenkins controller JVM.

SECURITY-3932 / CVE-2026-92128 Script Security Plugin allows Groovy scripts to load classpath entries from JAR files, specified either by file path or by URL, which administrators must approve before any script is allowed to use them.

Script Security Plugin 1415.v9af9b3ac253d and earlier downloads a JAR file specified by URL twice when a script is evaluated, confirming the approval of the first download and loading the classpath entries from the second.

This results in a time-of-check to time-of-use (TOCTOU) race condition that allows attackers able to define classpath entries to execute arbitrary code in the context of the Jenkins controller JVM.

NOTE: Exploitation requires an already approved JAR file to be served from an attacker-controlled server.

SECURITY-3977 / CVE-2026-92129 Script Security Plugin provides a sandbox feature that allows running user-provided scripts safely by intercepting and checking potentially unsafe operations.

Groovy allows an existing class to be extended at runtime with additional methods.

Script Security Plugin 1415.v9af9b3ac253d and earlier does not check calls to such methods from sandboxed scripts.

This allows attackers with permission to define and run sandboxed scripts, including Pipelines, to bypass the sandbox protection and execute code outside the sandbox.

NOTE: Exploitation requires that the dynamically added methods have already been defined by code running outside the sandbox, e.g. by a plugin, as sandboxed scripts cannot extend a class themselves.

SECURITY-3729 / CVE-2026-92130 Pipeline: Multibranch Plugin 841.vec5b9e1806ec and earlier does not set the appropriate context for credentials lookup in the resolveScm Pipeline step, allowing the use of System-scoped credentials otherwise reserved for the global configuration.

This allows attackers with Item/Configure permission to access and capture credentials they are not entitled to use.

SECURITY-3796 / CVE-2026-92131 Pipeline: Groovy Libraries Plugin provides the library step to retrieve a shared library from an SCM, using a library path to specify the directory containing the library inside the SCM checkout.

Pipeline: Groovy Libraries Plugin 805.vafc79344957d and earlier does not restrict that library path to a relative path inside the SCM checkout.

Additionally, it follows symbolic links to locations outside of the SCM checkout when retrieving the library.

This results in a path traversal vulnerability, allowing attackers able to configure Pipelines to read files in a resources directory and to delete files in a test directory on the Jenkins controller file system.

SECURITY-4028 / CVE-2026-92132 Gradle Plugin provides global options for administrators to detect build scan links in build logs, and to show an enriched build scan summary for those build scans on the build page.

In Gradle Plugin 2.19.1252.v15196b5a6e10 and earlier, the enriched build scan summary requests data from the build scan link detected in the build log, even when a Develocity server URL is configured in the global configuration.

This allows attackers able to control the build log to capture the Develocity access key configured in the global configuration by having Jenkins connect to an attacker-specified URL.

SECURITY-3851 / CVE-2026-92133 GitLab Plugin allows jobs to override the globally configured GitLab API token credentials with an alternative one, and caches the GitLab API client it builds for those credentials.

GitLab Plugin 1.2149.vcfc32c82bf7f and earlier derives the cache key from the credentials ID alone, omitting the folder in which the credentials are resolved, resulting in the GitLab API token credentials being taken from the folder of the job that created the cache entry.

This allows attackers with Item/Configure permission to access GitLab API token credentials they are not entitled to use.

SECURITY-3937 / CVE-2026-92134 Warnings Plugin uses analysis results IDs to create the links to analysis results on the Jenkins UI.

Warnings Plugin 13.10258.va17d49a78c3b and earlier does not validate the analysis results ID when a job configuration is submitted through the REST API. This allows attackers with Item/Configure permission to use a javascript: scheme URL as identifier, resulting in a stored cross-site scripting (XSS) vulnerability.

TIP: On Jenkins 2.539 and newer, LTS 2.541.1 and newer, enforcing Content Security Policy protection mitigates this vulnerability.

SECURITY-4118 / CVE-2026-92135 Coverage Plugin uses coverage results IDs to create the links to coverage results on the Jenkins UI.

Coverage Plugin 3.3358.v9487dde48783 and earlier does not validate the coverage results ID when a job configuration is submitted through the REST API. This allows attackers with Item/Configure permission to use a javascript: scheme URL as identifier, resulting in a stored cross-site scripting (XSS) vulnerability.

TIP: On Jenkins 2.539 and newer, LTS 2.541.1 and newer, enforcing Content Security Policy protection mitigates this vulnerability.

SECURITY-3992 / CVE-2026-92136 OWASP Dependency-Check Plugin 5.6.4 and earlier does not escape CWE values from Dependency-Check reports on the Jenkins UI.

This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Item/Configure permission.

TIP: On Jenkins 2.539 and newer, LTS 2.541.1 and newer, enforcing Content Security Policy protection mitigates this vulnerability.

SECURITY-3971 / CVE-2026-92137 Robot Framework Plugin 6.2.2 and earlier does not check that the archive directory configured for Robot Framework report files is contained within the build directory on the Jenkins controller.

This allows attackers with Item/Configure permission to create or replace arbitrary files on the Jenkins controller file system with attacker-specified content, which can lead to remote code execution.

SECURITY-3778 / CVE-2026-92138 Bitbucket Server Integration Plugin implements an OAuth provider for Bitbucket Server.

The OAuth authorization endpoint in Bitbucket Server Integration Plugin 6.0.1 and earlier reads the oauthcallback URL from the submitted form rather than from the server-side stored request token. An attacker who can manipulate the form submission can cause Jenkins to redirect the authorizing user's browser to an arbitrary URL. The redirect includes the oauthtoken and oauthverifier parameters, allowing the attacker to complete the OAuth flow and obtain an access token on behalf of the victim.

NOTE: Exploiting this vulnerability requires the attacker to have previously registered an OAuth consumer (requires Overall/Administer permission) and to be able to intercept and modify the victim's form submission.

SECURITY-3980 / CVE-2026-92139 Bitbucket Push and Pull Request Plugin provides a webhook endpoint at /bitbucket-hook/ to receive webhook notifications.

When acting on these notifications, Bitbucket Push and Pull Request Plugin 4.0.1 and earlier trusts values provided in the webhook payload, including certain URLs, and uses configured Bitbucket credentials to connect to those URLs.

This allows attackers to capture Bitbucket credentials stored in Jenkins by sending a crafted webhook payload.

SECURITY-4027 / CVE-2026-92140 Gitee Plugin 1301.v8957053c7902 and earlier does not escape the sender name from Gitee push webhook payloads in build causes.

This results in a stored cross-site scripting (XSS) vulnerability exploitable by attackers able to trigger builds via the Gitee Plugin webhook endpoint.

SECURITY-3767 / CVE-2026-92141 Keycloak Authentication Plugin 2.4.1 and earlier does not restrict the redirect URL after login.

This allows attackers to perform phishing attacks by having users go to a Jenkins URL that will forward them to a different site after successful authentication.

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Jenkins Parameterized Remote Trigger Plugin 3.2.2 and earlier stores tokens unencrypted in job config.xml files on the Jenkins controller where they can be viewed by users with Item/Extended Read permission or access to the Jenkins controller file system.

Missing permission checks in Jenkins XebiaLabs XL Deploy Plugin 26.1.0 and earlier allow attackers with Overall/Read permission to enumerate credentials IDs of credentials stored in Jenkins.

Jenkins File Parameter Plugin 425.v3fa801681b5e and earlier allows writing files to arbitrary locations on the Jenkins controller file system through Stapler data binding, which can lead to remote code execution.

Jenkins Performance Plugin 1015.v09ca52b3370e and earlier does not restrict the classes that can be instantiated when deserializing cached performance reports stored in the build directory on the Jenkins controller, allowing attackers with Item/Configure permission to execute arbitrary code on the Jenkins controller.

A path traversal vulnerability in Jenkins Allure Plugin 2.35.2 and earlier allows attackers with Item/Read permission on jobs that publish Allure report results to read arbitrary files on the Jenkins controller's file system.

Jenkins SAML Plugin 4.618.v441a27fa46d2 and earlier allows overwriting the SAML identity provider metadata file through Stapler data binding, allowing attackers to replace it with attacker-controlled content and authenticate as any user.

Jenkins Job Configuration History Plugin 1367.vc8fab15101dc and earlier allows overwriting the plugin's history recording configuration through Stapler data binding, allowing attackers to redirect history storage to an attacker-specified directory and modify history recording settings.

Jenkins ThinBackup Plugin 2.1.4 and earlier allows overwriting the plugin's backup configuration through Stapler data binding, allowing attackers to redirect backup writes to an attacker-specified directory and to include arbitrary files from the Jenkins controller file system in backups.

Jenkins SonarQube Scanner Plugin 2.18.3 and earlier does not limit URL schemes for the dashboard links it creates based on SonarQube scanner results, allowing the javascript: scheme, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Item/Configure permission.

A cross-site request forgery (CSRF) vulnerability in Jenkins Pipeline: Groovy Libraries Plugin 798.v5cc688825312 and earlier allows attackers to delete shared library caches.

Jenkins GitLab Plugin 1.9.16 and earlier allows overwriting the global GitLab connection configuration through Stapler data binding, allowing attackers to connect to an attacker-specified URL using GitLab API tokens already configured by administrators.

A missing permission check in Jenkins Pipeline: Build Step Plugin 599.v4b67ea11b152 and earlier causes downstream builds awaited by the waitForBuild step when the propagateAbort parameter is used to be canceled even when the build's authentication lacks Item/Cancel permission on the downstream job.