CVE-2026-24844: melange pipeline working-directory could allow command injection

February 3, 2026

An attacker who can provide build input values, but not modify pipeline definitions, could execute arbitrary shell commands if the pipeline uses ${{vars.*}} or ${{inputs.*}} substitutions in working-directory. The field is embedded into shell scripts without proper quote escaping.

References

github.com/advisories/GHSA-vqqr-rmpc-hhg2
github.com/chainguard-dev/melange
github.com/chainguard-dev/melange/commit/e51ca30cfb63178f5a86997d23d3fff0359fa6c8
github.com/chainguard-dev/melange/security/advisories/GHSA-vqqr-rmpc-hhg2
nvd.nist.gov/vuln/detail/CVE-2026-24844

Code Behaviors & Features

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