CVE-2026-117624: jenkins Deserialization of Untrusted Data
Vulnerability summary
CVE-2026-117624 is a high (CVSS 8.8) Deserialization of Untrusted Data vulnerability in jenkins. EPSS estimates a 0.39% chance of exploitation in the next 30 days, higher than 33% of scored vulnerabilities.
Not severe (CVSS 8.8, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Timeline
- 28-10-2026PublishedVulnerability first disclosed.
Description
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.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
0.39%
Chance of exploitation in the next 30 days
Percentile
33%
Versus all other CVEs
30-day change
Change unavailable
Change unavailable
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Chainguard3 products
- jenkins-2.555All versions (No fix recorded)
- jenkins-2.568All versions (No fix recorded)
- jenkins-2.580All versions (No fix recorded)
Jenkins1 product
- jenkins< 2.580.2 | < 2.588
2 vendors · 4 products