CVE-2026-16104
mediumpriority · track · 26EPSS 0.005 · 39 %ileDEEUUSEPSS · scored 2026-10-27
A flaw was found in the authentication configuration endpoint of the keycloak-services component, which is the core engine for Red Hat Build of Keycloak identity and access management. The issue occurs because the system fails to mask sensitive configuration values, such as reCAPTCHA secret keys, when they are requested by administrators with view-only permissions. This can lead to the exposure of third-party service credentials to unauthorized personnel or through administrative logs.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (3)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-2407Keycloak: Mehrere SchwachstellenDeutsch2026-07-19csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Keycloak ausnutzen, um Sicherheitsvorkehrungen zu umgehen, Daten zu manipulieren und vertrauliche Informationen offenzulegen.
- BIT-keycloak-2026-16104Keycloak-services: keycloak-services: authenticator config endpoint exposes raw recaptcha secrets to view-only admins2026-08-31vendor · osvUS
A flaw was found in the authentication configuration endpoint of the keycloak-services component, which is the core engine for Red Hat Build of Keycloak identity and access management. The issue occurs because the system fails to mask sensitive configuration values, such as reCAPTCHA secret keys, when they are requested by administrators with view-only permissions. This can lead to the exposure of third-party service credentials to unauthorized personnel or through administrative logs.
also known as (3)
Other names and identifiers for this entity.
sources
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references (8)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/CVE-2026-16104cnnvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2501737cnnvd
- https://access.redhat.com/security/cve/CVE-2026-16104enisa_euvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2501737enisa_euvd
- https://access.redhat.com/errata/RHSA-2026:68277nvd
- https://access.redhat.com/errata/RHSA-2026:68278nvd
- https://access.redhat.com/security/cve/CVE-2026-16104Vendor Advisorynvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2501737Issue TrackingVendor Advisorynvd
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