CVE-2026-57289: Jenkins Bitbucket Push and Pull Request Plugin 3.3.8 and earlier unconditionally disables SSL/TLS certificate

Q: How do I fix CVE-2026-57289?

bitbucket push and pull request: upgrade to 3.3.9. Exact commands for each OS are on this page.

Q: Is CVE-2026-57289 being exploited?

CVE-2026-57289 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-57289 affect?

CVE-2026-57289 affects bitbucket push and pull request. Severity is medium (CVSS 4.8). 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, a

Q: How urgent is CVE-2026-57289?

Priority 23/100. Remotely exploitable, no login, no user action

Routine

MEDIUM 4.8REMOTEUPGRADE

CVE-2026-57289 is a medium-severity flaw (CVSS 4.8) affecting bitbucket push and pull request. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	4.8 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.2% (top 95%)
CISA exploited list	No
Weakness	CWE-295
Published	2026-06-24
Last modified	2026-10-25

Publisher (CNA): Jenkins Project · Vendor: jenkins

Last updated 2026-10-25 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-24 14:17 UTCPublished CVE record published
2026-10-25 22:10 UTCUpdated Record last modified

jenkins bitbucket push and pull request UPGRADE

Affected: < 3.3.9

Fixed in: 3.3.9

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy bitbucket-push-and-pull-request || rpm -q bitbucket-push-and-pull-request || bitbucket-push-and-pull-request --version

2. UPGRADE to 3.3.9 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade bitbucket-push-and-pull-request

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade bitbucket-push-and-pull-request

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-57289?

bitbucket push and pull request: upgrade to 3.3.9. Exact commands for each OS are on this page.

Is CVE-2026-57289 being exploited?

CVE-2026-57289 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-57289 affect?

CVE-2026-57289 affects bitbucket push and pull request. Severity is medium (CVSS 4.8). 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, a

How urgent is CVE-2026-57289?

Priority 23/100. Remotely exploitable, no login, no user action

Software pages

Jenkins vulnerabilities · Bitbucket vulnerabilities

References

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