XML external entity injection in Jenkins URLTrigger Plugin
Priority HIGH 72CWE-611Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.
Summary
Jenkins URLTrigger Plugin 0.48 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks.
Why it matters now
EPSS 0.66774 99th percentileScored 2026-11-07
Fix Fixed org.jenkins-ci.plugins:urltrigger (Maven): 0.49
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Jenkins | Jenkins URLTrigger Plugin | up to 0.48 | — | No fix listed | CNA |
| — | org.jenkins-ci.plugins:urltrigger (Maven) | before 0.49 | 0.49 | Patch available | GHSA-34j5-c4cv-mmg5 |
- Jenkins URLTrigger Plugin VendorJenkins Affected up to 0.48 Fixed in — No fix listed CNA
- org.jenkins-ci.plugins:urltrigger (Maven) Vendor— Affected before 0.49 Fixed in 0.49 Patch available GHSA-34j5-c4cv-mmg5
Remediation
- Fix · GHSA-34j5-c4cv-mmg5 org.jenkins-ci.plugins:urltrigger (Maven) Fixed in 0.49 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2021-21659
- 2026-10-03 Alias added: GHSA-34j5-c4cv-mmg5
References
More Jenkins Urltrigger vulnerabilities
- TI-2018-15961 A server-side request forgery vulnerability exists in Jenkins URLTrigger Plugin 0.41 and… CVSS 3.0MEDIUM 6.5
Sources
- CVE-2021-21659 · CVE Program
- CVE-2021-21659 · NVD
- FIRST EPSS
- GHSA-34j5-c4cv-mmg5 · GitHub Advisory Database · CC BY 4.0
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