Path Traversal in Chainguard Melange
CVE-2026-24843
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…
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.002 (6.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:H.
Affected products
- Chainguard Melange
- Chainguard-dev Melange — versions >= 0.11.3, < 0.40.3
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Patch, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-24843?
- CVE-2026-24843 is a high-severity vulnerability in Chainguard Melange, classified under Path Traversal. CVSS score: 8.2/10. Published 2026-02-04.
- How severe is CVE-2026-24843?
- High severity. CVSS v3 base score is 8.2 out of 10.