{"schema_version":"1.7.5","id":"GHSA-7rp8-r62p-q6wc","published":"2026-03-02T22:04:23Z","modified":"2026-07-07T13:15:14.226759666Z","aliases":["CVE-2026-29049","GO-2026-4588"],"related":["CGA-97jr-54h6-qwpw"],"summary":"`melange update-cache` has unbounded HTTP download that can exhaust disk in CI","details":"`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.\n\n**Fix:** Merged\n**Acknowledgements**\n\nThank you to Oleh Konko from [1seal](https://1seal.org/) for discovering and reporting this issue.","affected":[{"package":{"name":"chainguard.dev/melange","ecosystem":"Go","purl":"pkg:golang/chainguard.dev/melange"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.43.4"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-7rp8-r62p-q6wc/GHSA-7rp8-r62p-q6wc.json"}}],"references":[{"type":"WEB","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":"WEB","url":"https://github.com/chainguard-dev/melange/pull/2379"},{"type":"WEB","url":"https://github.com/chainguard-dev/melange/commit/652ca5af08588f78e2d405e64b058fac8398d23f"},{"type":"PACKAGE","url":"https://github.com/chainguard-dev/melange"},{"type":"WEB","url":"https://github.com/chainguard-dev/melange/releases/tag/v0.43.4"}],"database_specific":{"cwe_ids":["CWE-400","CWE-918"],"github_reviewed":true,"github_reviewed_at":"2026-03-02T22:04:23Z","nvd_published_at":"2026-03-06T07:16:02Z","severity":"MODERATE"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L"}]}