CVE-2026-54174
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.
- CVSS 3.1
- 8.3
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H - EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 4% of CVEs (scores of 2026-10-25)
- CWEs
- CWE-345, CWE-354
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-fpg8-7664-jc5q | Go | chainguard.dev/apko | <1.2.9 | 1.2.9 |
| GHSA-fpg8-7664-jc5q | Go | chainguard.dev/melange | <0.50.4 | 0.50.4 |
| GO-2026-5968 | Go | chainguard.dev/apko | <1.2.9 | 1.2.9 |
| GO-2026-5968 | Go | chainguard.dev/melange | <0.50.4 | 0.50.4 |