Improper Certificate Validation in Bitbucket Push and Pull Request - CVE-2026-57289
Published: June 29, 2026
Vulnerability identifier: #VU135755
CSH Severity: Medium
CVSS v4: 6.3 [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]
CVE-ID: CVE-2026-57289
CWE-ID: CWE-295
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
Bitbucket Push and Pull Request
How to mitigate CVE-2026-57289
Install updates from vendor's website.
Bitbucket Push and Pull Request - update to 3.3.9