Answer in brief
CVE-2026-7507 records a High severity (CVSS 7.5) vulnerability in Org.keycloak/keycloak-services: session fixation in oidc login flow that can lead to account takeover. The current sources do not mark it as known exploited. The current feed maps Red Hat/keycloak-services (generic), org.keycloak:keycloak-services (maven), org.keycloak:keycloak-services (maven). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Red Hat/keycloak-services (generic), org.keycloak:keycloak-services (maven), org.keycloak:keycloak-services (maven). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Red Hat/keycloak-servicesgeneric | * | Not reported |
| org.keycloak:keycloak-servicesmaven | <26.6.2 | 26.6.2 |
| org.keycloak:keycloak-servicesmaven | >=0 <26.6.2 | 26.6.2 |
Published upstream
May 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 29, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 11, 2026
A session fixation vulnerability was found in Keycloak's login-actions endpoints. An unauthenticated attacker could exploit this flaw by pre-creating an authentication session and tricking a victim into visiting a maliciously crafted link. By leveraging the /login-actions/restart endpoint—which processes session handles without adequate CSRF protection or cookie ownership validation—an attacker can reset the authentication flow state. This causes Single Sign-On (SSO) to authenticate the victim transparently upon clicking the link, allowing the attacker to hijack the required-action form without needing the victim's credentials. A successful exploit could lead to complete account takeover, including highly privileged administrative accounts.
Quoted source text, attributed separately from HOL analysis.