CVE-2026-37979
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Keycloak: keycloak: information disclosure via oidc token introspection endpoint audience bypass
A flaw was found in Keycloak. This access control vulnerability in Keycloak's OpenID Connect (OIDC) token introspection endpoint allows a confidential client to bypass audience restrictions. An attacker-controlled client with valid credentials can retrieve sensitive token claims intended for other resource servers, compromising the confidentiality of lightweight access tokens. This issue can be exploited remotely by any confidential client in the realm with valid credentials.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Red Hat build of Keycloak 26.4
- Vendor
- Red Hat
- Product
- Red Hat build of Keycloak 26.4
- Platforms
- Unknown
- Default status
affected- Package
- rhbk/keycloak-operator-bundle
- Package collection
- https://catalog.redhat.com/software/containers/
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 26.4.12-1 | unaffected | rpm | * | Unavailable | None listed |
Red Hat build of Keycloak 26.4
- Vendor
- Red Hat
- Product
- Red Hat build of Keycloak 26.4
- Platforms
- Unknown
- Default status
affected- Package
- rhbk/keycloak-rhel9
- Package collection
- https://catalog.redhat.com/software/containers/
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 26.4-17 | unaffected | rpm | * | Unavailable | None listed |
Red Hat build of Keycloak 26.4
- Vendor
- Red Hat
- Product
- Red Hat build of Keycloak 26.4
- Platforms
- Unknown
- Default status
affected- Package
- rhbk/keycloak-rhel9-operator
- Package collection
- https://catalog.redhat.com/software/containers/
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 26.4-17 | unaffected | rpm | * | Unavailable | None listed |
Red Hat build of Keycloak 26.4.12
- Vendor
- Red Hat
- Product
- Red Hat build of Keycloak 26.4.12
- Platforms
- Unknown
- Default status
unaffected- Package
- rhbk/keycloak-rhel9
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.