CVE-2026-57289
CVE-2026-57289 is a medium-severity vulnerability in Jenkins Bitbucket Push And Pull Request with a CVSS 3.x base score of 4.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-295.
Key facts
- Severity: Medium (CVSS 3.x base score 4.8)
- EPSS exploit prediction: 0% (1st percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-38770
- Weakness: CWE-295
- Affected product: Jenkins Bitbucket Push And Pull Request
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2026-57289?
- 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.
- How severe is CVE-2026-57289?
- CVE-2026-57289 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2026-57289 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-57289?
- CVE-2026-57289 affects Jenkins Bitbucket Push And Pull Request. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-57289?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-57289 have an EU (EUVD) identifier?
- Yes. CVE-2026-57289 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38770.
- When was CVE-2026-57289 published?
- CVE-2026-57289 was published on 2026-06-24 and last updated on 2026-06-26.
References
Affected products (1)
- cpe:2.3:a:jenkins:bitbucket_push_and_pull_request:*:*:*:*:*:jenkins:*:*
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