PatchTheCVECVE-2026-117624: Jenkins 2.587 and earlier, LTS 2.580.1 and earlier does not consistently enforce the restriction on deserializ
CVE-2026-117624 is a high-severity flaw (CVSS 8.8) affecting jenkins. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Jenkins 2.587 and earlier, LTS 2.580.1 and earlier does not consistently enforce the restriction on deserializing objects of types marked as storing their configuration in independent top-level configuration files as nested values, allowing attackers to bypass the root element check and potentially inject nested objects.
Why this priority
- High severity
A fixed release or distro patch exists.
Risk facts
| CVSS score | 8.8 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.2% (top 91%) |
| CISA exploited list | No |
| Weakness | CWE-502 |
| Published | 2026-10-28 |
| Last modified | 2026-11-02 |
Last updated 2026-11-02 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-117624?
jenkins: upgrade to 2.580.2, 2.588. Exact commands for each OS are on this page.
Is CVE-2026-117624 being exploited?
CVE-2026-117624 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-117624 affect?
CVE-2026-117624 affects jenkins. Severity is high (CVSS 8.8). Jenkins 2.587 and earlier, LTS 2.580.1 and earlier does not consistently enforce the restriction on deserializing objects of types marked as storing their configuration in independent top-level configuration files as nested values, allowing
How urgent is CVE-2026-117624?
Priority 33/100. High severity
Software pages
Related CVEs
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- CVE-2026-117614 HIGH 7.2 UPGRADE Jenkins 2.587 and earlier, LTS 2.580.1 and earlier converts the launch commands in older agent configurations
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