CVE-2026-75077.5HighCWE-290

CVE-2026-7507: Org.keycloak/keycloak-services: session fixation in oidc login flow that can lead to account takeover

Red Hat · Red Hat build of Keycloak 26.2

Vendor fix available · Affected: Red Hat build of Keycloak 26.2 · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.8%probability of exploitation in the next 30 days

58th percentile

050100

Higher than 58% of scored CVEs

7.5HighCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

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.

Affected products13

From the CVE record. A product or version that is not listed is unknown, not unaffected.

Red Hat · Red Hat build of Keycloak 26.2Versions not stated
Red Hat · Red Hat build of Keycloak 26.2Versions not stated
Red Hat · Red Hat build of Keycloak 26.2Versions not stated
Red Hat · Red Hat build of Keycloak 26.2.16Versions not stated
Red Hat · Red Hat build of Keycloak 26.4Versions not stated
Red Hat · Red Hat build of Keycloak 26.4Versions not stated
Red Hat · Red Hat build of Keycloak 26.4Versions not stated
Red Hat · Red Hat build of Keycloak 26.4.12Versions not stated
Red Hat · Red Hat Single Sign-On 7.6.13Versions not stated
Red Hat · Red Hat Single Sign-On 7.6 for RHEL 7Versions not stated
Red Hat · Red Hat Single Sign-On 7.6 for RHEL 8Versions not stated
Red Hat · Red Hat Single Sign-On 7.6 for RHEL 9Versions not stated
Red Hat · RHEL-8 based Middleware ContainersVersions not stated

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Authentication Bypass by Spoofing · Authentication
Vendor: Red Hat
Published: May 2026
Band: Unlikely (under 1%), May 2026

CoverageNo articles yet

No CyberSIXT article names CVE-2026-7507 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.