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Suggestion detail

Untriaged
Permalink CVE-2026-24843
8.2 HIGH
  • CVSS version: 3.1
  • Attack vector (AV): LOCAL
  • Attack complexity (AC): LOW
  • Privileges required (PR): NONE
  • User interaction (UI): REQUIRED
  • Scope (S): CHANGED
  • Confidentiality impact (C): NONE
  • Integrity impact (I): HIGH
  • Availability impact (A): HIGH
created 2 months, 2 weeks ago Activity log
  • Created suggestion 2 months, 2 weeks ago
melange QEMU runner could write files outside workspace directory

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.

Affected products

melange
  • ==>= 0.11.3, < 0.40.3

Matching in nixpkgs

pkgs.melange

Build APKs from source code

  • nixos-unstable -
  • nixos-25.11 0.31.8

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