Main Vulnerability Database Vulnerabilities #VU135755

Improper Certificate Validation in Bitbucket Push and Pull Request - CVE-2026-57289

Published: June 29, 2026

Vulnerability identifier: #VU135755

CSH Severity: Medium

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

CVE-ID: CVE-2026-57289

CWE-ID: CWE-295

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vendor: Jenkins

Affected software:
Bitbucket Push and Pull Request

Detailed vulnerability description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to improper SSL/TLS certificate validation. A remote attacker can intercept network traffic to capture the token.

Install updates from vendor's website.