CVE-2026-24843

HIGH EPSS 6.3%
Published Feb 4, 20264mo ago · Modified Jun 17, 20261w ago
8.4 CVSS 3.1
High
Find Similar
Published Feb 4, 2026 4mo ago
Last Modified Jun 17, 2026 1w ago

Description

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.

CVSS Details

Base Score
8.4
Exploitability
2.0
Impact
5.8
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Changed
Confidentiality None
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
6.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-22 Path Traversal Resource Mgmt

Affected Products 1

VendorProductVersionRange
chainguardmelange*≥0.11.3  –  <0.40.5

References 2

  • github.com https://github.com/chainguard-dev/melange/commit/6e243d0d46699f837d7c392397a694d2bcc7612b
    Patch
  • github.com https://github.com/chainguard-dev/melange/security/advisories/GHSA-qxx2-7h4c-83f4
    PatchVendor Advisory

Remediation

  • github.com https://github.com/chainguard-dev/melange/commit/6e243d0d46699f837d7c392397a694d2bcc7612b
    Patch
  • github.com https://github.com/chainguard-dev/melange/security/advisories/GHSA-qxx2-7h4c-83f4
    PatchVendor Advisory