{
"id": "GHSA-fpg8-7664-jc5q",
"aliases": [
"CVE-2026-54174"
],
"details": "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.",
"summary": "melange: Incomplete package integrity verification allows data section substitution",
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.2.9"
}
]
}
],
"package": {
"name": "chainguard.dev/apko",
"ecosystem": "Go"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.50.4"
}
]
}
],
"package": {
"name": "chainguard.dev/melange",
"ecosystem": "Go"
}
}
],
"modified": "2026-07-10T21:43:05Z",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H"
}
],
"published": "2026-07-10T21:43:05Z",
"references": [
{
"url": "https://github.com/chainguard-dev/melange/security/advisories/GHSA-fpg8-7664-jc5q",
"type": "WEB"
},
{
"url": "https://github.com/chainguard-dev/melange",
"type": "PACKAGE"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [
"CWE-345",
"CWE-354"
],
"severity": "HIGH",
"github_reviewed": true,
"nvd_published_at": null,
"github_reviewed_at": "2026-07-10T21:43:05Z"
}
}