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CVE-2026-57289 medium CVSS 4.8

Vulnerability in io.jenkins.plugins:bitbucket-push-and-pull-request (CVE-2026-57289)

Summary

Vulnerability in io.jenkins.plugins:bitbucket-push-and-pull-request (CVE-2026-57289). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to 3.3.9 or later.

Original description

The description as published by the source.

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.

Source: NIST National Vulnerability Database NVD GitHub Advisory

Auto-generated summary

Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.

A vulnerability tracked as CVE-2026-57289 has been found in io.jenkins.plugins:bitbucket-push-and-pull-request.
Risk of unauthorized operations or information disclosure. CVSS score: 4.8/10.
What to do: upgrade io.jenkins.plugins:bitbucket-push-and-pull-request to 3.3.9 or later.
If unsure, ask your IT team or search "io.jenkins.plugins:bitbucket-push-and-pull-request CVE-2026-57289" on the vendor's site.

CVE-2026-57289 (io.jenkins.plugins:bitbucket-push-and-pull-request) — CWE-295 / CVSS v3 4.8
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Patched: 3.3.9 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.

❓ What is the problem

A vulnerability (CWE-295) exists in io.jenkins.plugins:bitbucket-push-and-pull-request.

📍 Affected scope

Check the vendor advisory for the affected versions of io.jenkins.plugins:bitbucket-push-and-pull-request.

🔥 Severity

Severity: Medium (CVSS 4.8/10). Risk of unauthorized operations or information disclosure.

🔧 How to fix

Update to 3.3.9.

🛡️ Workaround

Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.

🔍 Detection

Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.

Response actions

Concrete steps and command examples for SOC/SRE teams to execute in order

  1. 1
    Identify exposure identify 
    Audit SBOM/dependencies for affected components.

    資産台帳・SBOM・依存マニフェストで io.jenkins.plugins:bitbucket-push-and-pull-request を使っているサービスとバージョンを洗い出す。

  2. 2
    Apply patch patch 
    Upgrade io.jenkins.plugins:bitbucket-push-and-pull-request to 3.3.9

    ステージング環境で 3.3.9 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。

  3. 3
    Post-deployment verification verify 
    Confirm patched version is live in production

    パッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。

Affected packages

maven io.jenkins.plugins:bitbucket-push-and-pull-request
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.3.9"}]}]

References

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