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.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Jenkins Project
  • Jenkins Bitbucket Push And Pull Request Plugin

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References
Link Providers
https://www.jenkins.io/security/advisory/2026-06-24/#SECURITY-3856 cve-icon
History

Wed, 24 Jun 2026 21:00:00 +0000

Type Values Removed Values Added
First Time appeared Jenkins Project
Jenkins Project jenkins Bitbucket Push And Pull Request Plugin
Vendors & Products Jenkins Project
Jenkins Project jenkins Bitbucket Push And Pull Request Plugin

Wed, 24 Jun 2026 20:45:00 +0000

Type Values Removed Values Added
Title Bitbucket Push & Pull Request Plugin Disables SSL Validation on Bearer Tokens, Allowing Token Capture

Wed, 24 Jun 2026 17:15:00 +0000

Type Values Removed Values Added
Title Bitbucket Plugin Disables SSL/TLS Validation, Allowing Token Capture
Weaknesses CWE-310

Wed, 24 Jun 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 4.8, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 24 Jun 2026 15:00:00 +0000

Type Values Removed Values Added
Title Bitbucket Plugin Disables SSL/TLS Validation, Allowing Token Capture
Weaknesses CWE-295
CWE-310

Wed, 24 Jun 2026 13:45:00 +0000

Type Values Removed Values Added
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.
References
cve-icon MITRE

Status: PUBLISHED

Assigner: jenkins

Published: 2026-06-24T13:20:09.247Z

Updated: 2026-06-24T14:15:52.030Z

Reserved: 2026-06-24T08:41:44.358Z

Link: CVE-2026-57289

cve-icon Vulnrichment

Updated: 2026-06-24T14:15:43.265Z

cve-icon NVD

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cve-icon Redhat

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