Kurz gesagt
- CVE-2026-54174 ist eine Schwachstelle (HOCH (CVSS 8.3)) in chainguard.dev/apko, chainguard.dev/melange.
- Wahrscheinlichkeit einer Ausnutzung in den nächsten 30 Tagen (EPSS): 0.15%, höher als bei 4.6% aller Schwachstellen.
- Abhilfe: auf 1.2.9, 0.50.4 oder neuer aktualisieren.
Description
Previously, Apko 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.
NVD description
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.
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