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CVE-2026-46389

UDS Identity Config has a client authentication bypass in `ClientIdAndKubernetesSecretAuthenticator`

Published: Jun 5, 2026Updated: Jun 15, 2026 Sources: CVE List NVD BDUCWE-287
NVD MITRE
10.0CVSSCRITICAL
EPSS Score
0.3%
Top 75.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

UDS Identity Config builds the Keycloak configuration image (realm, plugins, theme, truststore, JARs) consumed by UDS Core's Identity deployment. In versions 0.11.0 through 0.26.0, a logic error in the `client-kubernetes-secret` Keycloak client authenticator (shipped by `uds-identity-config` and consumed by UDS Core) causes the submitted `client_secret` to be overwritten with the mounted Kubernetes secret before comparison. An attacker who can reach the Keycloak token endpoint and knows a `client_id` using this authenticator can authenticate as that client with any `client_secret` value and obtain OAuth2 tokens scoped to the client's service account. In the case of the `uds-operator` client this token can be used to registry/modify other clients. Version 0.26.1 patches the issue.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:CC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-287CWE-303

Affected Products

uds-identity-configdefenseunicorns
On-prem
Security Products / pki-crypto
uds-identity-configСообщество свободного программного обеспечения
On-prem
Operating Systems / linux-distro
uds identity configdefenseunicorns
On-prem
Security Products / pki-crypto
defenseunicornscommercialSecurity Productsaka pepr, uds-identity-config
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available
Workaround Available

MITRE ATT&CK

2 techniques
Initial Access
View detailed technique mapping

References

https://github.com/defenseunicorns/uds-identity-config/security/advisories/GHSA-8mg2-6588-r4hw
github.com
https://github.com/defenseunicorns/uds-identity-config/releases/tag/v0.26.1
github.com
https://github.com/defenseunicorns/uds-identity-config/releases/tag/v0.26.1
github.com
and 2 more references View all →

Timeline

Published
Jun 5, 2026
Last Updated
Jun 15, 2026

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