CVE-2026-44740 MEDIUM

CVE-2026-44740: go-billy: Lack of depth and cycle detection in symlink resolution may lead to infinite loops and resource exhaustion

Vendor Go-Git
Product go-billy
Weakness CWE-674
Published June 1, 2026
Last update June 1, 2026

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

Billy is an interface filesystem abstraction for Go. Prior to versions 5.9.0 and 6.0.0-alpha.1, multiple components may improperly handle crafted or malformed input, resulting in panics, infinite loops, uncontrolled recursion, or excessive resource consumption. These issues arise from insufficient validation and missing safety mechanisms such as cycle detection, recursion limits, or defensive handling of unexpected states when processing untrusted repository data and filesystem structures. This issue has been patched in versions 5.9.0 and 6.0.0-alpha.1.

Key dates

02Disclosure timeline

June 1, 2026 CVE published
June 1, 2026 Record updated