Improper certificate validation in Jenkins Bitbucket Push and Pull Request Plugin
Priority LOW 21CWE-295Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-295.
Summary
Jenkins Bitbucket Push and Pull Request Plugin 3.3.8 and earlier unconditionally disables SSL/TLS certificate and hostname validation for connections sending Bearer token authenticated requests to the configured Bitbucket Server endpoint, allowing attackers able to intercept network traffic to capture the token.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00156 4th percentileScored 2026-11-07
Fix Fixed io.jenkins.plugins:bitbucket-push-and-pull-request (Maven): 3.3.9
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Jenkins | Jenkins Bitbucket Push and Pull Request Plugin | up to 3.3.8 | — | No fix listed | CNA |
| — | io.jenkins.plugins:bitbucket-push-and-pull-request (Maven) | before 3.3.9 | 3.3.9 | Patch available | GHSA-jwhr-h7pc-3974 |
- Jenkins Bitbucket Push and Pull Request Plugin VendorJenkins Affected up to 3.3.8 Fixed in — No fix listed CNA
- io.jenkins.plugins:bitbucket-push-and-pull-request (Maven) Vendor— Affected before 3.3.9 Fixed in 3.3.9 Patch available GHSA-jwhr-h7pc-3974
Remediation
- Fix · GHSA-jwhr-h7pc-3974 io.jenkins.plugins:bitbucket-push-and-pull-request (Maven) Fixed in 3.3.9 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-57289
- 2026-10-03 Alias added: GHSA-jwhr-h7pc-3974
References
Other 3
- https://github.com/jenkinsci/bitbucket-push-and-pull-request-plugin/commit/5a0ae2155692beab48c6a0578a3eff22304a2014
- https://github.com/jenkinsci/bitbucket-push-and-pull-request-plugin
- https://github.com/jenkinsci/bitbucket-push-and-pull-request-plugin/releases/tag/bitbucket-push-and-pull-request-3.3.9
More Jenkins Bitbucket Push And Pull Request vulnerabilities
- TI-2023-22322 Server-side request forgery in Jenkins Bitbucket Push and Pull Request Plugin CVSS 3.1HIGH 7.5
Sources
- CVE-2026-57289 · CVE Program
- CVE-2026-57289 · NVD
- FIRST EPSS
- GHSA-jwhr-h7pc-3974 · GitHub Advisory Database · CC BY 4.0
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