What is CVE-2026-25143?

CVE-2026-25143 is a high-severity vulnerability in Chainguard-dev Melange, classified under OS Command Injection. CVSS score: 7.8/10. Published 2026-02-04.

How severe is CVE-2026-25143?

High severity. CVSS v3 base score is 7.8 out of 10.

RCE in Chainguard-dev Melange

CVE-2026-25143

melange allows users to build apk packages using declarative pipelines. From version 0.10.0 to before 0.40.3, an attacker who can influence inputs to the patch pipeline could execute arbitrary shell commands on the build host. The patch pi…

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.000 (1.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Chainguard-dev Melange — versions >= 0.10.0, < 0.40.3

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

https://github.com/chainguard-dev/melange/security/advisories/GHSA-rf4g-89h5-crcr (x_refsource_CONFIRM)
https://github.com/chainguard-dev/melange/commit/bd132535cd9f57d4bd39d9ead0633598941af030 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-25143?: CVE-2026-25143 is a high-severity vulnerability in Chainguard-dev Melange, classified under OS Command Injection. CVSS score: 7.8/10. Published 2026-02-04.
How severe is CVE-2026-25143?: High severity. CVSS v3 base score is 7.8 out of 10.