CVE-2026-42575

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Source
https://cve.org/CVERecord?id=CVE-2026-42575
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42575.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-42575
Aliases
Downstream
Related
Published
2026-05-09T19:26:27.415Z
Modified
2026-07-16T03:48:31.672390580Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
Summary
apko doesn't verify downloaded apk packages against APKINDEX checksum (package substitution possible)
Details

apko allows users to build and publish OCI container images built from apk packages. Prior to version 1.2.7, apko verifies the signature on APKINDEX.tar.gz but never compares individually downloaded .apk packages against the checksum recorded in the signed index. The checksum is parsed and available via ChecksumString(), and the downloaded package control hash is computed, but the two values are never compared in getPackageImpl(). Mismatched packages are silently accepted. An attacker who can substitute download responses (compromised mirror, HTTP repository, poisoned CDN cache) can install arbitrary packages into built images. This issue has been patched in version 1.2.7.

Database specific 
{
    "cwe_ids": [
        "CWE-345",
        "CWE-494"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42575.json",
    "cna_assigner": "GitHub_M"
}
References

Affected packages

Git / github.com/chainguard-dev/apko

Affected ranges

Type
GIT
Repo
https://github.com/chainguard-dev/apko
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
a118c3d604107532b5525bd4bee2fb369a6228aa
Database specific 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.2.7"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

0.*
0.27.8
v0.*
v0.1
v0.1.1
v0.1.2
v0.10.0
v0.11.0
v0.11.1
v0.11.2
v0.11.3
v0.12.0
v0.13.0
v0.13.1
v0.13.2
v0.13.3
v0.14.0
v0.14.1
v0.14.2
v0.14.3
v0.14.4
v0.14.5
v0.14.6
v0.14.7
v0.14.8
v0.14.9
v0.15.0
v0.16.0
v0.17.0
v0.18.0
v0.18.1
v0.19.0
v0.19.1
v0.19.2
v0.19.3
v0.19.4
v0.19.5
v0.19.6
v0.19.7
v0.19.8
v0.19.9
v0.2.0
v0.2.1
v0.2.2
v0.20.0
v0.20.1
v0.20.2
v0.21.0
v0.22.1
v0.22.2
v0.22.3
v0.22.4
v0.22.5
v0.22.6
v0.22.7
v0.23.0
v0.24.0
v0.25.0
v0.25.1
v0.25.2
v0.25.3
v0.25.4
v0.25.5
v0.25.6
v0.25.7
v0.26.0
v0.26.1
v0.27.0
v0.27.1
v0.27.2
v0.27.3
v0.27.4
v0.27.5
v0.27.6
v0.27.7
v0.27.9
v0.28.0
v0.29.0
v0.29.1
v0.29.10
v0.29.2
v0.29.3
v0.29.4
v0.29.5
v0.29.6
v0.29.7
v0.29.8
v0.29.9
v0.3.0
v0.3.1
v0.3.2
v0.3.3
v0.30.0
v0.30.1
v0.30.10
v0.30.11
v0.30.12
v0.30.13
v0.30.14
v0.30.15
v0.30.16
v0.30.17
v0.30.18
v0.30.19
v0.30.2
v0.30.20
v0.30.21
v0.30.22
v0.30.23
v0.30.24
v0.30.25
v0.30.26
v0.30.27
v0.30.28
v0.30.29
v0.30.3
v0.30.30
v0.30.31
v0.30.32
v0.30.33
v0.30.34
v0.30.35
v0.30.4
v0.30.5
v0.30.6
v0.30.7
v0.30.8
v0.30.9
v0.4.0
v0.5.0
v0.6.0
v0.7.0
v0.7.1
v0.7.2
v0.7.3
v0.8.0
v0.9.0
v1.*
v1.0.0
v1.0.1
v1.0.2
v1.0.3
v1.0.4
v1.0.5
v1.1.0
v1.1.1
v1.1.10
v1.1.11
v1.1.12
v1.1.13
v1.1.14
v1.1.15
v1.1.16
v1.1.2
v1.1.3
v1.1.4
v1.1.5
v1.1.6
v1.1.7
v1.1.8
v1.1.9
v1.2.0
v1.2.1
v1.2.2
v1.2.3
v1.2.4
v1.2.5
v1.2.6

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42575.json"