CVE-2026-25143
Chainguard · melange
A high-severity vulnerability in melange affects how declarative pipelines build apk packages, posing a significant risk to supply chain integrity.
Executive summary
The melange build tool contains a high-severity vulnerability that could allow for the compromise of apk package builds within declarative pipelines.
Vulnerability
The vulnerability resides in the declarative pipeline processing engine of melange. While the specific mechanism is not detailed, the CVSS score of 7.8 suggests a significant flaw that could be triggered by an authenticated user with pipeline configuration privileges or through malicious build definitions.
Business impact
This flaw poses a direct threat to the software supply chain by potentially allowing the injection of malicious code into legitimate apk packages. With a CVSS score of 7.8, the impact is high, as compromised packages could be distributed to downstream users, leading to widespread system compromises and severe reputational damage to the organization providing the software.
Remediation
Immediate Action: Update melange to the latest patched version and re-validate all packages built using declarative pipelines since the vulnerability's introduction.
Proactive Monitoring: Audit build logs and pipeline definitions for unauthorized changes or anomalous build behaviors that deviate from established patterns.
Compensating Controls: Implement strict access controls on build environments and require multi-factor authentication for any changes to declarative pipeline configurations.
Exploitation status
Public Exploit Available: false
Analyst recommendation
Given the critical role melange plays in the modern software supply chain, this vulnerability must be addressed with high urgency. Organizations should apply the vendor-provided updates immediately to ensure the continued integrity and security of their apk package distribution pipelines.