CVE-2026-7307

CVE.org · Published

Record status: Published
Identifier year (not publication year): 2026
Source publication: May 19, 2026
Source updated: Oct 6, 2026
Imported by cveboard: Oct 24, 2026
Source snapshot: cve_2026-10-24_midnight_baseline · Oct 24, 2026

CNA source text (English)

Keycloak: keycloak: denial of service via specially crafted saml input

A flaw was found in Keycloak. A remote, unauthenticated attacker can send a specially crafted XML input to the Security Assertion Markup Language (SAML) endpoint. This malicious input can cause high CPU usage and worker thread starvation, leading to a Denial of Service (DoS) where the server becomes 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

keycloak · Scoped product and version facts
Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
`affected`	semver	26.2.16	Unavailable	None listed
`affected`	semver	26.4.12	Unavailable	None listed
`affected`	semver	26.6.2	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-operator-bundle
Package collection: https://catalog.redhat.com/software/containers/

Red Hat build of Keycloak 26.2 · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
26.2.16-1	`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/

Red Hat build of Keycloak 26.2 · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
26.2-21	`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/

Red Hat build of Keycloak 26.2 · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
26.2-21	`unaffected`	rpm	*	Unavailable	None listed

Red Hat build of Keycloak 26.2.16

Vendor: Red Hat
Product: Red Hat build of Keycloak 26.2.16
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.

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/

Red Hat build of Keycloak 26.4 · Scoped product and version facts
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/

Red Hat build of Keycloak 26.4 · Scoped product and version facts
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/

Red Hat build of Keycloak 26.4 · Scoped product and version facts
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.

Red Hat Single Sign-On 7.6.13

Vendor: Red Hat
Product: Red Hat Single Sign-On 7.6.13
Platforms: Unknown
Default status: unaffected
Package: keycloak-services
Package collection: https://access.redhat.com/downloads/content/package-browser/

No explicit version tuples; consult this entry's default status.

Red Hat Single Sign-On 7.6 for RHEL 7

Vendor: Red Hat
Product: Red Hat Single Sign-On 7.6 for RHEL 7
Platforms: Unknown
Default status: affected
Package: rh-sso7-keycloak
Package collection: https://access.redhat.com/downloads/content/package-browser/

Red Hat Single Sign-On 7.6 for RHEL 7 · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
0:18.0.20-1.redhat_00001.1.el7sso	`unaffected`	rpm	*	Unavailable	None listed

Red Hat Single Sign-On 7.6 for RHEL 8

Vendor: Red Hat
Product: Red Hat Single Sign-On 7.6 for RHEL 8
Platforms: Unknown
Default status: affected
Package: rh-sso7-keycloak
Package collection: https://access.redhat.com/downloads/content/package-browser/

Red Hat Single Sign-On 7.6 for RHEL 8 · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
0:18.0.20-1.redhat_00001.1.el8sso	`unaffected`	rpm	*	Unavailable	None listed

Red Hat Single Sign-On 7.6 for RHEL 9

Vendor: Red Hat
Product: Red Hat Single Sign-On 7.6 for RHEL 9
Platforms: Unknown
Default status: affected
Package: rh-sso7-keycloak
Package collection: https://access.redhat.com/downloads/content/package-browser/

Red Hat Single Sign-On 7.6 for RHEL 9 · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
0:18.0.20-1.redhat_00001.1.el9sso	`unaffected`	rpm	*	Unavailable	None listed

RHEL-8 based Middleware Containers

Vendor: Red Hat
Product: RHEL-8 based Middleware Containers
Platforms: Unknown
Default status: affected
Package: rh-sso-7/sso76-openshift-rhel8
Package collection: https://catalog.redhat.com/software/containers/

RHEL-8 based Middleware Containers · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
7.6-85	`unaffected`	rpm	*	Unavailable	None listed