CVE-2026-25140

HIGH

7.5

Description

apko allows users to build and publish OCI container images built from apk packages. From version 0.14.8 to before 1.1.1, an attacker who controls or compromises an APK repository used by apko could cause resource exhaustion on the build host. The ExpandApk function in pkg/apk/expandapk/expandapk.go expands .apk streams without enforcing decompression limits, allowing a malicious repository to serve a small, highly-compressed .apk that inflates into a large tar stream, consuming excessive disk space and CPU time, causing build failures or denial of service. This issue has been patched in version 1.1.1.

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published2/4/2026

Last Modified2/20/2026

Sourcenvd

Honeypot Sightings0

Affected Products

chainguard:apko

Weaknesses (CWE)

CWE-400CWE-770

References

https://github.com/chainguard-dev/apko/commit/2be3903fe194ad46351840f0569b35f5ac965f09(security-advisories@github.com)

https://github.com/chainguard-dev/apko/security/advisories/GHSA-f4w5-5xv9-85f6(security-advisories@github.com)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.