VulnSocial

CVE-2026-71556Patch

LOWCVSS 7.1 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch affected systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

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.

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0.5/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-59

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Threat summary

  • Patch or workaround signal is available
  • 1 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • 1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-08-07: 1Patch / Workaround · 2026-08-07: 1Technical Details · 2026-08-07: 108-07
Signal classification1 categories
Patch
1100.0%
Referenced assets3 URLs
Full discourse1 post
  • Upwind Security MDR@UpwindMDR
    Patch

    🚨High - go-git Worktree Symlink Escape (CVE-2026-71556) go-git worktree ops in http://github.com/go-git/go-git may follow existing symlinks during checkout/status/add, allowing path resolution to escape the worktree. A malicious repo can read/write arbitrary host files (incl. .git/config) via crafted symlink paths. Bare repos without a worktree aren’t impacted. 👉Affected: http://github.com/go-git/go-git/v5 < 5.19.2; http://github.com/go-git/go-git/v6 < 6.0.0-alpha.5 | Upgrade to 5.19.2 / 6.0.0-alpha.5

    Post summary

    The advisory identifies a High‑severity worktree symlink escape in go‑git and provides specific version upgrades as the remedy.

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