CVE-2026-71557: Go-Git

Medium severity, CVSS 6.3. EPSS: 0.4% chance of exploitation in the next 30 days.

go-git is an extensible git implementation library written in pure Go. Prior to 5.19.2 and 6.0.0-alpha.5, reference names are not sanitized before being used to construct on-disk paths under the reference storage directory, so a maliciously crafted reference name (for example containing directory-traversal sequences) can cause go-git to write files outside the intended reference storage directory. Versions 5.19.2 and 6.0.0-alpha.5 fix the issue.

Affected products

• Go-Git Go-Git: before 5.19.2 (fixed in 5.19.2); from 6.0.0-alpha.1, before 6.0.0-alpha.5 (fixed in 6.0.0-alpha.5)

Published 2026-08-07. Last modified 2026-09-10.