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CVE-2026-46389

Defenseunicorns Uds Identity Config authentication bypass

10.0 CRITICALEPSS 0.57%
  1. Published5 Jun 2026

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 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected products

Defenseunicorns Uds Identity Config≥ 0.11.0 < 0.26.1

Remediation

Fixed in
Defenseunicorns Uds Identity Config≥ 0.26.1

References

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Frequently asked

Is CVE-2026-46389 being actively exploited?

CVE-2026-46389 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.57%.

How severe is CVE-2026-46389?

CVE-2026-46389 has a CVSS 3.1 base score of 10.0, rated critical. EPSS estimates a 0.57% probability of exploitation.

Which products are affected by CVE-2026-46389?

Affected products include Defenseunicorns Uds Identity Config.

How do I fix CVE-2026-46389?

Upgrade affected software to a fixed version, for example Defenseunicorns Uds Identity Config 0.26.1 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-46389 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.