melange: unbounded HTTP download in `melange update-cache` can exhaust disk in CI
cve-program · CVE-2026-29049
Publishedmelange 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.
Read the publisher's advisoryeuvd · EUVD-2026-10015
Publishedmelange 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.
Read the publisher's advisorynvd · CVE-2026-29049
Publishedmelange 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.
Read the publisher's advisoryosv · GHSA-7rp8-r62p-q6wc
Published`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.
Read the publisher's advisoryosv · GO-2026-4588
Published`melange update-cache` has unbounded HTTP download that can exhaust disk in CI in chainguard.dev/melange
Read the publisher's advisoryAffected versions, risk and source history
Related advisories and sources
Publishers link these advisories through the identifiers shown below. A shared identifier or date alone does not tell you whether your software is affected or whether the advisories describe the same cause.
CVE-2026-29049 · CVE overview and exploitation status
cve-program · CVE-2026-29049
- https://github.com/chainguard-dev/melange/security/advisories/GHSA-7rp8-r62p-q6wc
- 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
euvd · EUVD-2026-10015
- https://github.com/chainguard-dev/melange/security/advisories/GHSA-7rp8-r62p-q6wc
- 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
nvd · CVE-2026-29049
- https://github.com/chainguard-dev/melange/commit/652ca5af08588f78e2d405e64b058fac8398d23f
- https://github.com/chainguard-dev/melange/pull/2379
- https://github.com/chainguard-dev/melange/releases/tag/v0.43.4
- https://github.com/chainguard-dev/melange/security/advisories/GHSA-7rp8-r62p-q6wc
osv · GHSA-7rp8-r62p-q6wc
- https://github.com/chainguard-dev/melange/security/advisories/GHSA-7rp8-r62p-q6wc
- https://nvd.nist.gov/vuln/detail/CVE-2026-29049
- https://github.com/chainguard-dev/melange/pull/2379
- https://github.com/chainguard-dev/melange/commit/652ca5af08588f78e2d405e64b058fac8398d23f
- https://github.com/chainguard-dev/melange
- https://github.com/chainguard-dev/melange/releases/tag/v0.43.4
osv · GO-2026-4588
Related changes
Linked by CVE identifierNo related changes are available here.