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CVE-2026-92393

Apache YuniKorn: Admission control bypass via workload UPDATE operation

LOW
2
CVSS Score
Published: October 7, 2026 at 09:15 AM UTC
Updated: October 7, 2026 at 06:17 PM UTC
1 product affected across 1 vendorApache Yunikorn

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Severity
LOW2
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Vendor Advisory
Source: cverecord
https://lists.apache.org/thread.html/sfo83zlrrx9ftbox9oxcp03qox2co449
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.openwall.com/lists/oss-security/2026/10/07/25

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

2LOWapache
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-863

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