{"id":"CVE-2026-54174","summary":"melange: Incomplete package integrity verification allows data section substitution","details":"melange allows users to build apk packages using declarative pipelines. Apko prior to version 1.2.9, corresponding to melange prior to version 0.50.4, verified the control section hash (`.PKGINFO` etc.) against the signed `APKINDEX`, but never verified the data section hash (the actual package files that get installed). An attacker who could compromise a mirror, poison a cache, or MITM a package fetch could substitute arbitrary file contents while the control hash check still passed. Apko version 1.2.9 and melange version 0.50.4 contain a fix.","aliases":["GHSA-fpg8-7664-jc5q","GO-2026-5968"],"modified":"2026-09-13T03:30:51.539250378Z","published":"2026-09-11T21:05:30.789Z","related":["openSUSE-SU-2026:21483-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54174.json","unresolved_ranges":[{"source":"AFFECTED_FIELD","extracted_events":[{"fixed":"1.2.9"}]}],"cna_assigner":"GitHub_M","cwe_ids":["CWE-345","CWE-354"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54174.json"},{"type":"ADVISORY","url":"https://github.com/chainguard-dev/melange/security/advisories/GHSA-fpg8-7664-jc5q"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-54174"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/chainguard-dev/melange","events":[{"introduced":"0"},{"fixed":"2582b68ddc8ca21b08bf7b244a2ff60bcbcee88f"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"0.50.4"}],"source":"AFFECTED_FIELD"}}],"versions":["v0.50.3","v0.50.2","v0.50.1","v0.50.0","v0.49.0","v0.48.2","v0.48.1","v0.48.0","v0.47.0","v0.46.1","v0.46.0","v0.45.4","v0.45.3","v0.45.2","v0.45.1","v0.45.0","v0.44.0","v0.43.7","v0.43.6","v0.43.5","v0.43.4","v0.43.3","v0.43.2","v0.43.1","v0.43.0","v0.42.0","v0.41.1","v0.41.0","v0.40.5","v0.40.4","v0.40.3","v0.40.2","v0.40.1","v0.40.0","v0.39.0","v0.38.1","v0.38.0","v0.37.5","v0.37.4","v0.37.3","v0.37.2","v0.37.1","v0.37.0","v0.36.0","v0.35.1","v0.35.0","v0.34.3","v0.34.2","v0.34.1","v0.34.0","v0.33.2","v0.33.1","v0.33.0","v0.32.0","v0.31.9","v0.31.8","v0.31.7","v0.31.6","v0.31.5","v0.31.4","v0.31.3","v0.31.2","v0.31.1","v0.31.0","v0.30.6","v0.30.5","v0.30.4","v0.30.3","v0.30.2","v0.30.1","v0.30.0","v0.29.7","v0.29.6","v0.29.5","v0.29.4","v0.29.3","v0.29.2","v0.29.1","v0.29.0","v0.28.0","v0.27.0","v0.26.13","v0.26.12","v0.26.11","v0.26.10","v0.26.9","v0.26.8","v0.26.7","v0.26.6","v0.26.5","v0.26.4","v0.26.3","v0.26.2","v0.26.1","v0.26.0","v0.25.1","v0.25.0","v0.24.0","v0.23.17","v0.23.16","v0.23.15","v0.23.14","v0.23.13","v0.23.12","v0.23.11","v0.23.10","v0.23.9","v0.23.8","v0.23.7","v0.23.6","v0.23.5","v0.23.4","v0.23.3","v0.23.2","v0.23.1","v0.23.0","v0.22.2","v0.22.1","v0.22.0","v0.21.2","v0.21.1","v0.21.0","v0.20.1","v0.20.0","v0.19.5","v0.19.4","v0.19.3","v0.19.1","v0.19.2","v0.19.0","v0.18.3","v0.18.2","v0.18.1","v0.18.0","v0.17.7","v0.17.6","v0.17.5","v0.17.4","v0.17.3","v0.17.2","v0.17.1","v0.17.0","v0.16.0","v0.15.14","v0.15.13","v0.15.12","v0.15.7","v0.15.11","v0.15.10","v0.15.9","v0.15.8","v0.15.6","v0.15.5","v0.15.4","v0.14.8","v0.15.3","v0.15.2","v0.14.9","v0.15.1","v0.15.0","v0.14.11","v0.14.10","v0.14.7","v0.14.6","v0.14.5","v0.14.4","v0.14.3","v0.14.2","v0.14.1","v0.14.0","v0.13.7","v0.13.6","v0.13.5","v0.13.4","v0.13.3","v0.13.2","v0.13.1","v0.13.0","v0.12.1","v0.12.0","v0.11.6","v0.11.5","v0.11.4","v0.11.3","v0.11.2","v0.11.1","v0.11.0","v0.10.4","v0.10.3","v0.10.2","v0.10.1","v0.10.0","v0.9.0","v0.8.6","v0.8.5","v0.8.4","v0.8.3","v0.8.2","v0.8.1","v0.8.0","v0.7.0","v0.6.11","v0.6.10","v0.6.1","v0.6.9","v0.6.7","v0.6.8","v0.6.6","v0.6.5","v0.6.4","v0.6.3","v0.6.2","v0.6.0","v0.5.10","v0.5.9","v0.5.8","v0.5.7","v0.5.6","v0.5.5","v0.5.4","v0.5.3","v0.5.2","v0.5.1","v0.5.0","v0.4.0","v0.2.0","v0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54174.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H"}]}