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CVE-2026-25145

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

Published: Feb 4, 2026Updated: Feb 18, 2026 Sources: CVE List NVD GHSACWE-22
5.5MEDIUM
NVD MITRE
EPSS Score
0.2%
Top 92.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:RS:UC:HI:NA:N
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-22

Affected Products

chainguard
oss-project
melangeMixed
DevTools & CI / build-test-tools
chainguard-dev
commercialaka chainguard.dev
melangeMixed
DevTools & CI / build-test-tools
Go
package-ecosystem
chainguard.dev/melange
OSS Libraries

Exploitability

Official Patch Available

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Collection
Discovery
View detailed technique mapping

References

https://github.com/chainguard-dev/melange/commit/2f95c9f4355ed993f2670bf1bb82d88b0f65e9e4
github.com
https://github.com/chainguard-dev/melange/security/advisories/GHSA-2w4f-9fgg-q2v9
github.com
https://nvd.nist.gov/vuln/detail/CVE-2026-25145
nvd.nist.gov
and 1 more references View all →

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