CVE-2026-24843 — 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 cou…
Published: 2026-02-04 · CVSS: 8.2 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7