Apko
CVE-2026-25140
HIGH
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessCompromise or control APK repository
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ExploitServe malicious highly-compressed APK
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ExecutionExpandApk decompresses without limits
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ImpactResource exhaustion on build host
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V2 - Validation and Business Logic Resource consumption limits
MITRE ATT&CK
1 technique across 1 tactic: Impact The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | apko versions 0.14.8 through 1.1.0 pulling packages from attacker-controlled or compromised APK repository during container image build process. No authentication required for repository access. |
| Impact | CVSS 7.5 (HIGH). Attack vector: Network. Complexity: Low. Privileges required: None. User interaction: None. |
| Exploit ScenarioDerived | An attacker could exploit this vulnerability to build and publish OCI container images built from apk packages. |
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Alert meAnalysisAIv1 – Mar 12, 2026
Apko versions 0.14.8 through 1.1.0 are vulnerable to denial of service when processing APK packages from untrusted repositories due to missing decompression limits in the ExpandApk function. An attacker controlling a compromised APK repository can provide a malicious small, highly-compressed package that expands into a massive tar stream, exhausting disk space and CPU resources on the build host. The vulnerability affects Golang and Apko products and has been patched in version 1.1.1.
Earlier versions of this analysis (1)
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. [CVSS 7.5 HIGH]
RemediationAI
A vendor patch is available — apply it immediately. Fixed in version 1.1.1.. Restrict network access to the affected service where possible.
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in go
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
Classified as CWE-400 (Uncontrolled Resource Consumption). Affects Apko. 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 s
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Primary rating from GitHub Advisory.
CVSS VectorGitHub Advisory
Lifecycle Timeline
2DescriptionGitHub Advisory
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.
Executive ViewAI
CVE-2026-25140 affects organizations using apko (versions 0.14.8 to 1.1.0) to build container images, allowing attackers who compromise APK repositories to exhaust build host resources and disrupt CI/CD pipelines. This vulnerability poses operational risk to development and deployment infrastructure, potentially impacting release schedules and system availability.
Apply vendor patch. Until patched, implement network segmentation to restrict build hosts' access to only trusted/internal APK repositories, enforce repository authentication and signing verification, implement resource quotas/limits on container build processes, and establish real-time monitoring for CPU/memory exhaustion on build infrastructure.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.
Affected Products (CPE)GitHub Advisory
Apko versions up to 1.1.1 contains a vulnerability that allows attackers to build and publish OCI container images built
Resource exhaustion in Apko versions 0.14.8 through 1.0.x allows local attackers to cause denial of service by supplying
Same weakness CWE-400 – Uncontrolled Resource Consumption
View allSame technique Denial Of Service
View allVendor StatusVendor
SUSE
Severity: High| Product | Status |
|---|---|
| openSUSE Leap 15.6 | Fixed |
| SUSE Linux Enterprise Module for Package Hub 15 SP5 | Fixed |
| SUSE Linux Enterprise Module for Package Hub 15 SP6 | Fixed |
| openSUSE Leap 15.5 | Fixed |
Exploit-DB