CVE-2025-11419
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2025
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Keycloak: keycloak tls client-initiated renegotiation denial of service
A flaw was found in Keycloak. This vulnerability allows an unauthenticated remote attacker to cause a denial of service (DoS) by repeatedly initiating TLS 1.2 client-initiated renegotiation requests to exhaust server CPU resources, making the service unavailable.
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.
keycloak
- Vendor
- Unknown
- Product
- Unknown
- Platforms
- Unknown
- Default status
unaffected- Package
- keycloak
- Package collection
- https://github.com/keycloak/keycloak/
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 0 | affected | semver | 26.0.16 | Unavailable | None listed |
| 26.1.0 | unknown | semver | 26.1.* | Unavailable | None listed |
| 26.2.0 | affected | semver | 26.2.10 | Unavailable | None listed |
| 26.3.0 | unknown | semver | 26.3.* | Unavailable | None listed |
| 26.4.0 | affected | semver | 26.4.1 | Unavailable | None listed |
Red Hat build of Keycloak 26.0
- Vendor
- Red Hat
- Product
- Red Hat build of Keycloak 26.0
- 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) |
|---|---|---|---|---|---|
| 26.0.16-2 | unaffected | rpm | * | Unavailable | None listed |
Red Hat build of Keycloak 26.0
- Vendor
- Red Hat
- Product
- Red Hat build of Keycloak 26.0
- 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) |
|---|---|---|---|---|---|
| 26.0-20 | unaffected | rpm | * | Unavailable | None listed |
Red Hat build of Keycloak 26.0
- Vendor
- Red Hat
- Product
- Red Hat build of Keycloak 26.0
- 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) |
|---|---|---|---|---|---|
| 26.0-21 | unaffected | rpm | * | Unavailable | None listed |
Red Hat build of Keycloak 26.0.16
- Vendor
- Red Hat
- Product
- Red Hat build of Keycloak 26.0.16
- Platforms
- Unknown
- Default status
unaffected- Package
- keycloak-server
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat build of Keycloak 26.2
- Vendor
- Red Hat
- Product
- Red Hat build of Keycloak 26.2
- 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) |
|---|---|---|---|---|---|
| 26.2.10-2 | unaffected | rpm | * | Unavailable | None listed |
Red Hat build of Keycloak 26.2
- Vendor
- Red Hat
- Product
- Red Hat build of Keycloak 26.2
- 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) |
|---|---|---|---|---|---|
| 26.2-11 | unaffected | rpm | * | Unavailable | None listed |
Red Hat build of Keycloak 26.2
- Vendor
- Red Hat
- Product
- Red Hat build of Keycloak 26.2
- 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) |
|---|---|---|---|---|---|
| 26.2-11 | unaffected | rpm | * | Unavailable | None listed |
Red Hat build of Keycloak 26.2.10
- Vendor
- Red Hat
- Product
- Red Hat build of Keycloak 26.2.10
- Platforms
- Unknown
- Default status
unaffected- Package
- keycloak-server
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.