https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-06T11:42:08.483612+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/euvd-2026-267443 EUVD-2026-267443 2026-10-06T11:42:08.580269+00:00 EUVD-2026-267443 https://cve.radiocsirt.org/vuln/fkie_cve-2026-24843 fkie_cve-2026-24843 2026-10-06T11:42:08.580309+00:00

melange allows users to build apk packages using declarative pipelines. In version 0.11.3 to before 0.40.3, an attacker who can influence the tar stream from a QEMU guest VM could write files outside the intended workspace directory on the host. The retrieveWorkspace function extracts tar entries without validating that paths stay within the workspace, allowing path traversal via ../ sequences. This issue has been patched in version 0.40.3.

 https://cve.radiocsirt.org/vuln/ghsa-qxx2-7h4c-83f4 GHSA-qxx2-7h4c-83f4 — melange QEMU runner could write files outside workspace directory 2026-10-06T11:42:08.580346+00:00

Affected: Go: chainguard.dev/melange

An attacker who can influence the tar stream from a QEMU guest VM could write files outside the intended workspace directory on the host. The `retrieveWorkspace` function extracts tar entries without validating that paths stay within the workspace, allowing Path Traversal via `../` sequences.

**Fix:** Fixed in [6e243d0d](https://github.com/chainguard-dev/melange/commit/6e243d0d46699f837d7c392397a694d2bcc7612b). Merged in release.

**Acknowledgements**

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