CVE-2026-25140

HIGH EPSS 28.5%
Published Feb 4, 20264mo ago · Modified Jun 17, 20261w ago
7.5 CVSS 3.1
High
Find Similar
Published Feb 4, 2026 4mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
28.5% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 2

CWE-400 Uncontrolled Resource Consumption Resource Mgmt
CWE-770

Affected Products 1

VendorProductVersionRange
chainguardapko*≥0.14.8  –  <1.1.1

References 2

  • github.com https://github.com/chainguard-dev/apko/commit/2be3903fe194ad46351840f0569b35f5ac965f09
    Patch
  • github.com https://github.com/chainguard-dev/apko/security/advisories/GHSA-f4w5-5xv9-85f6
    Third Party Advisory

Remediation

  • github.com https://github.com/chainguard-dev/apko/commit/2be3903fe194ad46351840f0569b35f5ac965f09
    Patch