CVE-2026-57283 Jenkins Project CVE debrief

Who should care

Jenkins administrators and users of Pipeline: Groovy Plugin should assess exposure and apply patches or mitigations to prevent potential CSRF attacks. Defenders should care about CVE-2026-57283 because it allows attackers to manipulate Jenkins Pipeline: Groovy Plugin configurations through CSRF attacks, potentially leading to security risks. It is essential to verify exposure and apply patches or mitigations to prevent potential CSRF attacks. Security team

Why it matters

Defenders should care about CVE-2026-57283 because it allows attackers to manipulate Jenkins Pipeline: Groovy Plugin configurations through CSRF attacks, potentially leading to security risks. Jenkins administrators and users should verify exposure, apply patches, and implement CSRF protections.

• Verify and update Jenkins Pipeline: Groovy Plugin versions to prevent exploitation
• Implement CSRF protections to prevent unintended configuration changes
• Monitor for suspicious activity and update plugin dependencies

Technical summary

The Jenkins Pipeline: Groovy Plugin is vulnerable to a CSRF attack, allowing attackers to instantiate types related to job or system configuration. This requires user interaction and can lead to unintended configuration changes. The vulnerability is caused by a lack of proper validation and sanitization of user input. Defenders should prioritize verifying exposure and applying patches or mitigations to Jenkins Pipeline: Groovy Plugin instances. The vulnerability has a CVSS score of 4.3 and a severity of MEDIUM. The CVE record and NVD entry provide additional details on the vulnerability.

Defensive priority

Defenders should prioritize verifying exposure and applying patches or mitigations to Jenkins Pipeline: Groovy Plugin instances.

Recommended defensive actions

• Verify Jenkins Pipeline: Groovy Plugin version and apply patches if necessary
• Implement CSRF protections and validate user input
• Monitor for suspicious activity and update plugin dependencies
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and NVD entry provide details on the CSRF vulnerability in Jenkins Pipeline: Groovy Plugin. Vendor advisory is available from Jenkins. The vulnerability has been publicly disclosed, and defenders should verify exposure and apply patches or mitigations to prevent potential CSRF attacks. The CVE record was published on 2026-06-24T14:17:34.270Z and has not been modified since then. There is no evidence of exploitation in the wild, but defenders should still take necessary precautions.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.