High7.1Red Hat Linux

High [CVE-2026-71556] Arbitrary file read/write via symbolic link resolution

This high-severity Red Hat Linux advisory covers CVE-2026-71556 affecting Multicluster Engine for Kubernetes, Red Hat Advanced Cluster Management for Kubernetes 2.

CVE-2026-71556 Published Aug 7, 2026Updated by vendor Aug 7, 2026

CVE-2026-71556

Affected products & platforms

Red Hat LinuxUnclassified

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Summary

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.

This could result in information disclosure or arbitrary file modification. Red Hat severity: Important — CVSS 7.1 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L).

Weakness: CWE-59. Affected Red Hat products: Multicluster Engine for Kubernetes; Red Hat Advanced Cluster Management for Kubernetes 2.

Red Hat does not currently list a fixing RHSA for this CVE.

Affected versions

< 5.19.2
< 6.0.0-alpha
6.0.0

Official advisory · high-confidence parse· fetched 3 hours ago·verify at source

Fixed versions

5.19.2
6.0.0-alpha

Official advisory · high-confidence parse· fetched 3 hours ago·verify at source

Mitigation

Upgrade to a fixed release: 5.19.2, 6.0.0-alpha. That is the remediation for this advisory.

The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.

Official advisory · high-confidence parse· fetched 3 hours ago·verify at source

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