Vulnerability in Go-Git
CVE-2026-71556
go-git is an extensible git implementation library written in pure Go. Prior to 5.19.2 and 6.0.0-alpha.5, worktree operations (including checkout, status, and add) resolve symbolic links inside the working tree without confining resolution to the worktree boundary, so a maliciously crafted repository containing a symlink can cause go-git to read from or write to files outside the intended working directory when the repository is cloned and its worktree operations are used. Versions 5.19.2 and 6.0.0-alpha.5.
EPSS: 0.004 (29.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L.
Affected products
- Go-git — versions < 5.19.2, >= 6.0.0-alpha.1, < 6.0.0-alpha.5
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-71556?
- CVE-2026-71556 is a high-severity vulnerability in Go-Git, classified under Improper Link Resolution Before File Access. CVSS score: 7.1/10. Published 2026-08-07.
- How severe is CVE-2026-71556?
- High severity. CVSS v3 base score is 7.1 out of 10.