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EUVD-2026-266979

2026-10-06T01:59:47.428633+00:00

EUVD-2026-266979

fkie_cve-2026-24846

2026-10-06T01:59:47.428678+00:00

malcontent discovers supply-chain compromises through. context, differential analysis, and YARA. Starting in version 1.8.0 and prior to version 1.20.3, malcontent could be made to create symlinks outside the intended extraction directory when scanning a specially crafted tar or deb archive. The `handleSymlink` function received arguments in the wrong order, causing the symlink target to be used as the symlink location. Additionally, symlink targets were not validated to ensure they resolved within the extraction directory. Version 1.20.3 introduces fixes that swap handleSymlink arguments, validate symlink location, and validate symlink targets that resolve within an extraction directory.

GHSA-923j-vrcg-hxwh — malcontent vulnerable to symlink Path Traversal via handleSymlink argument confusion in archive extraction

2026-10-06T01:59:47.428717+00:00

Affected: Go: github.com/chainguard-dev/malcontent

malcontent could be made to create symlinks outside the intended extraction directory when scanning a specially crafted tar or deb archive. The `handleSymlink` function received arguments in the wrong order, causing the symlink target to be used as the symlink location. Additionally, symlink targets were not validated to ensure they resolved within the extraction directory.

**Fixes:** - [Swap handleSymlink arguments; validate symlink location](https://github.com/chainguard-dev/malcontent/commit/a7dd8a5328ddbaf235568437813efa7591e00017) - [Validate symlink targets resolve within extraction directory](https://github.com/chainguard-dev/malcontent/commit/259fca5abc004f3ab238895463ef280a87f30e96)

**Acknowledgements**

Thank you to Oleh Konko from [1seal](https://1seal.org/) for discovering and reporting this issue.