Answer in brief
CVE-2026-57285 records a Medium severity (CVSS 4.3) vulnerability in Jenkins GitHub Branch Source Plugin has missing permission check that allows enumerating GitHub Enterprise server URLs. The current sources do not mark it as known exploited. The current feed maps org.jenkins-ci.plugins:github-branch-source (maven), org.jenkins-ci.plugins:github-branch-source (maven). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 4.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps org.jenkins-ci.plugins:github-branch-source (maven), org.jenkins-ci.plugins:github-branch-source (maven). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| org.jenkins-ci.plugins:github-branch-sourcemaven | <1967.1970 | 1967.1970 |
| org.jenkins-ci.plugins:github-branch-sourcemaven | >=0 <1967.1970 | 1967.1970 |
Published upstream
Jun 24, 2026
Evidence: source:ghsa:source_dates:source-dates:recordSource modified
Sep 25, 2026
Evidence: source:ghsa:source_dates:source-dates:recordFirst seen by HOL
Jun 24, 2026
Jenkins GitHub Branch Source Plugin 1967.1969.v205fd594c821 and earlier does not perform a permission check in an HTTP endpoint that lists the GitHub API endpoints configured in the global plugin configuration. This allows attackers with Overall/Read permission to obtain the URLs of GitHub Enterprise servers configured by administrators. This vulnerability has been reported through the Jenkins Bug Bounty Program sponsored by the European Commission. GitHub Branch Source Plugin 1967.1970.vd86979736546 requires Overall/Manage permission or Item/Extended Read permission on an item to list the configured GitHub API endpoints.
Quoted source text, attributed separately from HOL analysis.