`melange update-cache` has unbounded HTTP download that can exhaust disk in CI in chainguard.dev/melange

Open Source Vulnerabilities GHSA-7rp8-r62p-q6wc

`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 runner. Affected versions <= 0.40.5. **Fix:** Merged **Acknowledgements** Thank you to Oleh Konko from [1seal](https://1seal.org/) for discovering and reporting this issue.

Open Source Vulnerabilities GO-2026-4588

`melange update-cache` has unbounded HTTP download that can exhaust disk in CI in chainguard.dev/melange

Open Source Vulnerabilities CVE-2026-29049

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.