CVE-2026-18941Network attack vector

Cross-tenant data disclosure via default no-auth mode

Published Aug 10, 2026 · Updated Aug 10, 2026

Missing authentication in Feast within Red Hat OpenShift AI 2.25, 3.3, and 3.4 allows remote authenticated users to read cross-tenant data. Feast SDK AuthConfig and feast-operator defaults select no_auth, so no security manager enforces permissions on feature, registry, or offline server requests. Cluster-network access and low-privileged tenant access are required; the supported consequence is unauthorized cross-tenant data disclosure.

CVSS severity7.7
High
EPSS probability0.59%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in Feast within Red Hat OpenShift AI 2.25, 3.3, and 3.4 allows remote authenticated users to read cross-tenant data. Feast SDK AuthConfig and feast-operator defaults select no_auth, so no security manager enforces permissions on feature, registry, or offline server requests. Cluster-network access and low-privileged tenant access are required; the supported consequence is unauthorized cross-tenant data disclosure.

The record

CVE
CVE-2026-18941
Published
Aug 10, 2026
Updated
Aug 10, 2026
Vendor
389 Directory Server
Product
Red Hat OpenShift AI
Classifications
CWE-306, T1210
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

389 Directory Server · Red Hat OpenShift AIAffected versions are unavailable in this record.

Published CVSS scores

7.7Red HatCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
T1210Exploitation of Remote Services

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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