EUVD-2026-80753
GHSA-qvfm-3vp6-7vg5
Severity by source
AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Network-submitted scripts (AV:N) but a specific dynamic-method technique is required (AC:H) by a user already granted sandboxed-script permission (PR:L); sandbox escape yields full code execution (C/I/A:H), S:U per Jenkins convention.
Primary rating from Vendor (jenkins).
CVSS VectorVendor: jenkins
Lifecycle Timeline
5DescriptionCVE.org
Jenkins Script Security Plugin 1415.v9a_f9b_3a_c253d 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.
Articles & Coverage 1
AnalysisAI
Sandbox escape in Jenkins Script Security Plugin 1415.v9a_f9b_3a_c253d and earlier allows an authenticated Jenkins user who is permitted to define and run sandboxed scripts - including Pipeline jobs - to break out of the Groovy sandbox and execute arbitrary code on the Jenkins controller. The flaw is a protection-mechanism failure (CWE-693): the sandbox's call-site interception does not cover methods that are added dynamically to a class at runtime, so a crafted script can invoke such a method and run code that should have been blocked. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires an authenticated Jenkins account holding permission to define and run sandboxed scripts, including Pipeline (Job/Configure or equivalent script-authoring rights); this is the primary limiter and the reason for PR:L. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a genuine sandbox-escape leading to code execution on the Jenkins controller - a real priority for any Jenkins operator, but its severity is gated by prerequisites that keep it below a drop-everything emergency. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Patch status: fix documented in the vendor advisory - upgrade the Jenkins Script Security Plugin to a release newer than 1415.v9a_f9b_3a_c253d, per the Jenkins security advisory at https://www.jenkins.io/security/advisory/2026-09-16/#SECURITY-3977 (the exact fixed version is specified there and should be taken from the advisory rather than inferred; the EUVD mirror is at https://nvd.nist.gov/vuln/detail/CVE-2026-92129). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Jenkins controllers running Script Security Plugin 1415.v9a_f9b_3a_c253d or earlier, and immediately restrict the permission to define and run sandboxed scripts-including Pipeline jobs-to a minimal set of fully trusted administrators; revoke script-authoring rights from lower-trust users and tenants, enable audit logging for Groovy script execution, and monitor for anomalous controller-side activity. …
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Same weakness CWE-693 – Protection Mechanism Failure
View allSame technique Authentication Bypass
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External POC / Exploit Code
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