CVE-2026-25140CWE-400

apko affected by potential unbounded resource consumption in expandapk.ExpandApk on attacker-controlled .apk streams

High · published February 4, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
34.4
In the wild
Unconfirmed
What it is

⚡ A sneaky APK repository can lead to chaos! Versions 0.14.8 to before 1.1.1 of apko let attackers exploit compressed APKs to fill your build host with unnecessary baggage! Think of it like a delivery driver dropping off a tiny box that mysteriously expands into a mountain of junk in your living room — it looks harmless at first, but soon you're buried under an avalanche! An attacker could serve a deceptively small, compressed APK that unpacks into an enormous tar stream, consuming all your disk space and CPU time. This could lead to build failures or even a denial of service, putting your entire development process at risk!

Put simply

Think of it like a delivery driver dropping off a tiny box that mysteriously expands into a mountain of junk in your living room — it looks harmless at first, but soon you're buried under an avalanche! The vulnerability in apko's ExpandApk function fails to enforce decompression limits, allowing malicious APKs to balloon into massive resource drains during the build process.

What to do

An attacker could serve a deceptively small, compressed APK that unpacks into an enormous tar stream, consuming all your disk space and CPU time. This could lead to build failures or even a denial of service, putting your entire development process at risk! Upgrade to apko version 1.1.1 immediately to resolve this issue. Regularly audit your APK repositories and be cautious of any new or unverified sources that could serve compromised packages! You've got this! By patching up, you’ll keep your builds running smoothly and your environment secure! 🛡️

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00413 · 34.4th percentile
Weakness
CWE-400 · Uncontrolled Resource Consumption
Published
2026-02-04T19:02Z
EPSS history
Timeline
  • 04 FEB 19:02Z
    apko affected by potential unbounded resource consumption in expandapk.ExpandApk on attacker-controlled .apk streams
    cvelistv5