CVE-2026-92393

Status: DeferredLow (2)—

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.

Read full descriptionShow less

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.

CVSS

Version: 4.0
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Base score: 2

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.45%
Percentile among all scored CVEs: 37
Score date: 10/7/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

🎯 ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

ExploitationT1203 Exploitation for Client Executionexecution45 %
Primary impactT1078.001 Default Accountsstealth · persistence · privilege escalation · initial access70 %
Secondary impactT1552.007 Container APIcredential access55 %
Secondary impactT1565.001 Stored Data Manipulationimpact60 %

UPDATE sin validación de anotaciones permite falsificar identidad de usuario (T1078.001) y modificar asignación de cola (T1565.001). Requiere PR:H (usuario autenticado) y UI:P. Afecta control de acceso a recursos y cuotas en Kubernetes.

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

🛡️ ATT&CK mitigations that cover these techniques

User Account Management Restrict File and Directory Permissions Privileged Account Management Password Policies Remote Data Storage Network Segmentation

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Apache — Yunikorn^AI

CWEs

CWE-863

References

Raw JSON (NVD)

Show

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  "id": "CVE-2026-92393",
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  "published": "2026-10-07T10:17:42.247",
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  "lastModified": "2026-10-07T18:17:31.200",
  "sourceIdentifier": "security@apache.org"
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