🛡️ CVE-2026-54174 — apko

🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-345 OSV
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

melange: Incomplete package integrity verification allows data section substitution

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is high, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2026-54174 is classified as CWE-345: Insufficient Verification of Data Authenticity. Data is trusted without confirming it really came from the claimed source and was not altered.

Affected software

CVE-2026-54174 is recorded against 2 packages.

  • chainguard.dev/apko
  • chainguard.dev/melange

Timeline and source

Published on 10 July 2026 and last revised on 22 July 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

github.com (Web)
github.com (Package)

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
CWE CWE-345
Public Exploit ✅ No
Source OSV
Published 2026-07-10
Updated 2026-08-12
Modified 2026-07-22
Fix URL N/A

Affected Packages

Software From version Fixed in
chainguard.dev/apko — —
chainguard.dev/melange — —

Similar Threats

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