EUVD-2026-70140
GHSA-v45c-jr4p-q7x2
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Item/Configure maps to PR:L; Jenkins is network-accessible (AV:N); no interaction needed; full controller RCE yields C:H/I:H/A:H with unchanged scope.
Primary rating from Vendor (jenkins).
CVSS VectorVendor: jenkins
Lifecycle Timeline
4DescriptionCVE.org
Jenkins Performance Plugin 1015.v09ca_52b_3370e 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.
Articles & Coverage 2
AnalysisAI
Unrestricted Java deserialization in Jenkins Performance Plugin 1015.v09ca_52b_3370e and earlier enables any user holding Item/Configure permission to execute arbitrary code on the Jenkins controller. The plugin stores performance test results as serialized Java objects in the build directory and reads them back without enforcing a class allowlist, enabling classic gadget-chain exploitation (CWE-502). …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a valid Jenkins account holding Item/Configure permission on at least one project - a permission level routinely granted to developers and project maintainers, not anonymous or guest users. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 8.8 vector (AV:N/AC:L/PR:L/UI:N) accurately characterizes the threat: Jenkins is network-accessible and Item/Configure is a routine developer-level permission, meaning the attacker population is potentially large on any shared Jenkins instance. … 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 | Upgrade Jenkins Performance Plugin to the latest version available from the Jenkins plugin update center, as the Jenkins security advisory at https://www.jenkins.io/security/advisory/2026-09-02/#SECURITY-4026 documents the fix under SECURITY-4026. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all Jenkins instances running the Performance Plugin and audit which users hold Item/Configure permission; immediately restrict this privilege to only essential administrators and review recent configuration change logs for suspicious activity. …
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Same weakness CWE-502 – Deserialization of Untrusted Data
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External POC / Exploit Code
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