What is CVE-2026-25145?

CVE-2026-25145 is a medium-severity vulnerability in Chainguard-dev Melange, classified under Path Traversal. CVSS score: 5.5/10. Published 2026-02-04.

How severe is CVE-2026-25145?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Path Traversal in Chainguard-dev Melange

CVE-2026-25145

melange allows users to build apk packages using declarative pipelines. From version 0.14.0 to before 0.40.3, an attacker who can influence a melange configuration file (e.g., through pull request-driven CI or build-as-a-service scenarios)…

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.000 (0.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.

Affected products

Chainguard-dev Melange — versions >= 0.14.0, < 0.40.3

Weakness classification (CWE)

CWE-22 — Path Traversal

References

https://github.com/chainguard-dev/melange/security/advisories/GHSA-2w4f-9fgg-q2v9 (x_refsource_CONFIRM)
https://github.com/chainguard-dev/melange/commit/2f95c9f4355ed993f2670bf1bb82d88b0f65e9e4 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-25145?: CVE-2026-25145 is a medium-severity vulnerability in Chainguard-dev Melange, classified under Path Traversal. CVSS score: 5.5/10. Published 2026-02-04.
How severe is CVE-2026-25145?: Medium severity. CVSS v3 base score is 5.5 out of 10.