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.

Published · last modified .

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.

EPSS exploit prediction

EPSS: 0.004 (29.5th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 29.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-71556: held from 0.004 to 0.004.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

  • Go-Git — versions < 5.19.2, >= 6.0.0-alpha.1, < 6.0.0-alpha.5

Weakness classification (CWE)

References

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.