Incorrect default permissions in Jenkins Self-Organizing Swarm Plug-in Modules Plugin
Priority LOW 21CWE-276Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-285.
Summary
Jenkins Self-Organizing Swarm Plug-in Modules Plugin 3.20 and earlier does not check permissions on API endpoints that allow adding and removing agent labels.
Why it matters now
EPSS 0.00656 51st percentileScored 2026-11-07
Fix Fixed org.jenkins-ci.plugins:swarm (Maven): 3.21
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 Self-Organizing Swarm Plug-in Modules Plugin | up to 3.20 | — | No fix listed | CNA |
| — | org.jenkins-ci.plugins:swarm (Maven) | before 3.21 | 3.21 | Patch available | GHSA-j852-mp82-wv2g |
- Jenkins Self-Organizing Swarm Plug-in Modules Plugin VendorJenkins Affected up to 3.20 Fixed in — No fix listed CNA
- org.jenkins-ci.plugins:swarm (Maven) Vendor— Affected before 3.21 Fixed in 3.21 Patch available GHSA-j852-mp82-wv2g
Remediation
- Fix · GHSA-j852-mp82-wv2g org.jenkins-ci.plugins:swarm (Maven) Fixed in 3.21 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2020-2191
- 2026-10-03 Alias added: GHSA-j852-mp82-wv2g
- 2026-10-12 EPSS moved to the 50th–90th percentile
References
Advisory 3
More Jenkins Self-organizing Swarm Modules vulnerabilities
- TI-2019-07618 XML external entity injection in Jenkins Self-Organizing Swarm Plug-in Modules Plugin CVSS 3.0CRITICAL 9.3
- TI-2020-02069 Cross-site request forgery in Jenkins Self-Organizing Swarm Plug-in Modules Plugin CVSS 3.1MEDIUM 6.5
Sources
- CVE-2020-2191 · CVE Program
- CVE-2020-2191 · NVD
- FIRST EPSS
- GHSA-j852-mp82-wv2g · GitHub Advisory Database · CC BY 4.0
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