CVE-2026-25145
MEDIUM
GHSA-2w4f-9fgg-q2v9
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Lifecycle Timeline
3Tags
Description
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.
Analysis
Melange versions 0.14.0 through 0.40.2 allow local attackers with configuration file control to read arbitrary files from the host system through path traversal in license file path validation, potentially exfiltrating sensitive data embedded in generated SBOMs. This vulnerability affects build pipeline scenarios where configuration is user-controlled, such as pull request-driven CI or build-as-a-service environments. …
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Remediation
Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Review file handling controls.
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