CVE-2026-29049melange: unbounded HTTP download in `melange update-cache` can exhaust disk in CI

Descripción

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.

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-7rp8-r62p-q6wc Vendor Advisory
• https://github.com/chainguard-dev/melange/pull/2379
• https://github.com/chainguard-dev/melange/commit/652ca5af08588f78e2d405e64b058fac8398d23f
• https://github.com/chainguard-dev/melange/releases/tag/v0.43.4