What is CVE-2026-42574?

CVE-2026-42574 is a high-severity vulnerability in Chainguard-dev Apko, classified under Path Traversal. CVSS score: 7.5/10. Published 2026-05-09.

How severe is CVE-2026-42574?

High severity. CVSS v3 base score is 7.5 out of 10.

Path Traversal in Chainguard-dev Apko

CVE-2026-42574

apko allows users to build and publish OCI container images built from apk packages. From version 0.14.8 to before version 1.2.5, a crafted .apk could install a TypeSymlink tar entry whose target pointed outside the build root, and a subse…

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.001 (21.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Chainguard-dev Apko — versions >= 0.14.8, < 1.2.5

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-42574?: CVE-2026-42574 is a high-severity vulnerability in Chainguard-dev Apko, classified under Path Traversal. CVSS score: 7.5/10. Published 2026-05-09.
How severe is CVE-2026-42574?: High severity. CVSS v3 base score is 7.5 out of 10.