Jenkins Bitbucket Push and Pull Request Plugin unconditionally disables SSL/TLS certificate validation (CVE-2026-57289)

Jenkins Bitbucket Push and Pull Request Plugin unconditionally disables SSL/TLS certificate validation (CVE-2026-57289) | HOL Guard CVE

Why this deserves its current priority

CVSS is 4.8. 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.

Affected scope and exposure questions

The current feed maps io.jenkins.plugins:bitbucket-push-and-pull-request (maven), io.jenkins.plugins:bitbucket-push-and-pull-request (maven). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
io.jenkins.plugins:bitbucket-push-and-pull-requestmaven	<3.3.9	3.3.9
io.jenkins.plugins:bitbucket-push-and-pull-requestmaven	>=0 <3.3.9	3.3.9

Recommended response

Check inventory. Check lockfiles and deployed manifests for io.jenkins.plugins:bitbucket-push-and-pull-request, io.jenkins.plugins:bitbucket-push-and-pull-request.
Review the reported fix. Update io.jenkins.plugins:bitbucket-push-and-pull-request to 3.3.9; io.jenkins.plugins:bitbucket-push-and-pull-request to 3.3.9 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Jun 24, 2026
Evidence: source:ghsa:source_dates:source-dates:record
Source modified
Sep 25, 2026
Evidence: source:ghsa:source_dates:source-dates:record
First seen by HOL
Jun 24, 2026

Sources and claim methodology

Upstream source description

Jenkins Bitbucket Push and Pull Request Plugin 3.3.8 and earlier unconditionally disables SSL/TLS certificate and hostname validation for the connections it makes to Bitbucket Server using Bearer token authentication. Because the Bearer token is transmitted in these requests, this allows attackers able to intercept network traffic to capture the token and impersonate the Jenkins controller to Bitbucket Server. Bitbucket Push and Pull Request Plugin 3.3.9 validates SSL/TLS certificates and hostnames for the connections it makes to Bitbucket Server using Bearer token authentication, using the trust store configured for the Jenkins controller JVM.

Quoted source text, attributed separately from HOL analysis.