CVE-2026-29049

melange: unbounded HTTP download in `melange update-cache` can exhaust disk in CI

State: Published
Severity: 4.3 Medium
Published: Mar 6, 2026
Updated: Jul 7, 2026
Reserved: Mar 3, 2026

Description

melange allows users to build apk packages using declarative pipelines. In version 0.40.5 and prior, melange update-cache downloads URIs from build configs via io.Copy without any size limit or HTTP client timeout (pkg/renovate/cache/cache.go). An attacker-controlled URI in a melange config can cause unbounded disk writes, exhausting disk on the build runne. Version 0.43.4 contains a patch.

Scores

CVSS	Score	Vector	Source
3.1	4.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L	GitHub_M

Weaknesses

CWE-400 Uncontrolled Resource Consumption
CWE-918 Server-Side Request Forgery (SSRF)

Affected Products

Product	Versions
melangechainguard-dev	< 0.43.4Affected

References

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