PT-2026-6211 · Melange · Melange

1Seal · Published 2026-02-03 · Updated 2026-02-06 · CVE-2026-24843

Positive Technologies (AI Summary)

CVSS v3.1

8.4

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H

Name of the Vulnerable Software and Affected Versions melange versions 0.11.3 through 0.40.2

Description melange is a tool that allows users to build apk packages using declarative pipelines. A security issue exists where an attacker who can influence the tar stream from a QEMU guest VM could write files outside the intended workspace directory on the host system. The retrieveWorkspace function extracts tar entries without validating that paths remain within the workspace, enabling path traversal through the use of '../' sequences.

Recommendations Update to version 0.40.3 or later.

Exploit

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2026-24843

GHSA-QXX2-7H4C-83F4

GO-2026-4407

SUSE-SU-2026:0403-1

Affected Products

Melange

References · 88

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/24xxx/CVE-2026-24843.json · Exploit
• https://github.com/chainguard-dev/melange/security/advisories/GHSA-qxx2-7h4c-83f4 · Vendor Advisory
• https://github.com/chainguard-dev/melange/commit/6e243d0d46699f837d7c392397a694d2bcc7612b · Patch
• https://osv.dev/vulnerability/GHSA-qxx2-7h4c-83f4 · Vendor Advisory
• https://osv.dev/vulnerability/GO-2026-4407 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-24843 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0403-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-24843 · Security Note
• https://github.com/chainguard-dev/melange · Note
• https://suse.com/security/cve/CVE-2026-25578 · Note
• https://suse.com/security/cve/CVE-2026-24843 · Note
• https://suse.com/security/cve/CVE-2025-69199 · Note
• https://suse.com/security/cve/CVE-2026-23829 · Note
• https://suse.com/security/cve/CVE-2026-24846 · Note
• https://suse.com/security/cve/CVE-2026-20888 · Note