CVE-2026-25145melange has a path traversal in license-path which allows reading files outside workspace

Descripción

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) could read arbitrary files from the host system. The LicensingInfos function in pkg/config/config.go reads license files specified in copyright[].license-path without validating that paths remain within the workspace directory, allowing path traversal via ../ sequences. The contents of the traversed file are embedded into the generated SBOM as license text, enabling exfiltration of sensitive data through build artifacts. This issue has been patched in version 0.40.3.

Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.

Productos y versiones afectados

Referencias y parches

• https://github.com/chainguard-dev/melange/security/advisories/GHSA-2w4f-9fgg-q2v9 PatchVendor Advisory
• https://github.com/chainguard-dev/melange/commit/2f95c9f4355ed993f2670bf1bb82d88b0f65e9e4 Patch