CVE-2026-54727
proot-distro is a utility for managing proot containers. Prior to version 5.1.6, proot-distro restore accepted hardlink entries whose linkname referenced another installed container and did not verify that the hardlink source container matched the destination container being restored, allowing a crafted restore archive to copy files between otherwise isolated containers. This issue is fixed in version 5.1.6.
Weakness
proot-distro is a utility for managing proot containers. Prior to version 5.1.6, proot-distro restore accepted hardlink entries whose linkname referenced another installed container and did not verify that the hardlink source container matched the destination container being restored, allowing a crafted restore archive to copy files between otherwise isolated containers. This issue is fixed in version 5.1.6.
References
- https://github.com/termux/proot-distro/commit/98aff324b7d8500ff75a8ca9ac087ee636be4716
- https://github.com/termux/proot-distro/releases/tag/v5.1.6
- https://github.com/termux/proot-distro/security/advisories/GHSA-7h3g-4w2f-fj2f
- https://github.com/termux/proot-distro/security/advisories/GHSA-7h3g-4w2f-fj2f
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