{"id":"CVE-2026-29049","aliases":["GHSA-7rp8-r62p-q6wc","GO-2026-4588"],"url":"https://o3.security/vulnerability/CVE-2026-29049","summary":"melange: unbounded HTTP download in `melange update-cache` can exhaust disk in CI","details":"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.","published":"2026-03-06T07:03:10.361Z","modified":"2026-08-12T03:51:18.932560404Z","cvss":{"score":4.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"chainguard.dev/melange","fixedVersion":"0.43.4"}],"fix":{"url":"https://github.com/chainguard-dev/melange/commit/652ca5af08588f78e2d405e64b058fac8398d23f","label":"chainguard-dev/melange@652ca5a"},"references":[{"type":"WEB","url":"https://github.com/chainguard-dev/melange/releases/tag/v0.43.4"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/29xxx/CVE-2026-29049.json"},{"type":"ADVISORY","url":"https://github.com/chainguard-dev/melange/security/advisories/GHSA-7rp8-r62p-q6wc"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-29049"},{"type":"FIX","url":"https://github.com/chainguard-dev/melange/commit/652ca5af08588f78e2d405e64b058fac8398d23f"},{"type":"FIX","url":"https://github.com/chainguard-dev/melange/pull/2379"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:18.932560404Z"}}