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Back to active CVEs
Low · CVSS 2.0CVE-2026-92393

Apache YuniKorn: Admission control bypass via workload UPDATE operationCVE-2026-92393

Answer in brief

CVE-2026-92393 records a Low severity (CVSS 2.0) vulnerability in Apache YuniKorn: Admission control bypass via workload UPDATE operation. The current sources do not mark it as known exploited. The current feed maps Apache Software Foundation/github.com/apache/yunikorn-k8shim (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 7, 2026Updated Oct 7, 2026Source checked Oct 7, 2026First seen by HOL Oct 7, 2026Material review Oct 7, 2026
Upstream Advisory

Key facts

Risk
Low · CVSS 2.0
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 2.0. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Apache Software Foundation/github.com/apache/yunikorn-k8shim (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Apache Software Foundation/github.com/apache/yunikorn-k8shimgeneric>=0 <1.10.01.10.0

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Apache Software Foundation/github.com/apache/yunikorn-k8shim.
  2. 2Review the reported fix. Update Apache Software Foundation/github.com/apache/yunikorn-k8shim to 1.10.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Oct 7, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 7, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 7, 2026

Sources and claim methodology

  • Source referencelists.apache.org
  • Source referenceopenwall.com
Upstream source description

Apache YuniKorn 1.9.0 and earlier does not implement label and user annotation checks for workload UPDATE action bypassing all checks. Workloads in YuniKorn are defined as the following Kubernetes objects: "deployments", "replicasets", "statefulsets", "daemonsets", "jobs", "cronjobs". The CREATE action correctly enforces the checks for all object types. The bypass allows any user to specify an arbitrary user info annotation. The same bypass also allows changing the application ID for the workload. The combination of the two applied in one UPDATE could allow access to a queue that the user normally would not have access to. Quota usage for the queue might be impacted if the application runs in the incorrect queue. User based quota enforcement is also based on the user annotation. User quota tracking could be side stepped even if the application runs in the correct queue. Users are recommended to upgrade to version 1.10.0, which fixes this issue.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Apache YuniKorn: LDAP Group provider panics on lowercase attribute nameSame apache software foundation/github.com/apache/yunikorn-k8shim package
  • Apache YuniKorn: Admission control bypass via system label forgerySame apache software foundation/github.com/apache/yunikorn-k8shim package
  • Joomla Extension - ordasoft.com - Unauthenticated Destructive CRUD in OrdaSoft Touch Slider < 5.4.6Same generic ecosystem
  • Joomla Extension - ordasoft.com - Unauthenticated SQL injection in OrdaSoft Simple Membership < 7.4.0Same generic ecosystem
  • WordPress Hustle plugin <= 7.8.14.2 - Broken Access Control vulnerabilitySame generic ecosystem
  • WordPress Booktics plugin <= 1.0.27 - Broken Access Control vulnerabilitySame generic ecosystem

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
Not reported
Source
CVE List V5
Source checked
Oct 7, 2026
References
2 linked sources
Open source record