Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Jenkins Script Security Plugin versions before 1.54 contain a sandbox bypass. An attacker with Overall/Read permission can execute arbitrary code on the Jenkins master JVM. Upgrade script-security to version 1.54 or later.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 9.9 | Critical | 3.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:H | GitHub Advisory Database |
- CISA KEV Listed since 25 Apr 2022: known to be exploited.
- EPSS 0.74, the 99th percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 15:10 UTC First seen by agentprime
- 31 Oct 2026, 15:10 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-xvxq-hq48-xphm
- OSV: GHSA-xvxq-hq48-xphm
- nvd.nist.gov/vuln/detail/CVE-2019-1003029
- access.redhat.com/errata/RHSA-2019:0739
- github.com/jenkinsci/script-security-plugin
- jenkins.io/security/advisory/2019-03-06/#SECURITY-1336%20%281%29
- jenkins.io/security/advisory/2019-03-06/#SECURITY-1336%20(1)
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-1003029
- packetstormsecurity.com/files/166778/Jenkins-Remote-Code-Execution.html