CVE-2026-7307

7.5 HIGH
Published: May 19, 2026 Modified: June 03, 2026
View on NVD

Description

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:19594
Source: secalert@redhat.com
Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:19595
Source: secalert@redhat.com
Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:19596
Source: secalert@redhat.com
Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:19597
Source: secalert@redhat.com
Vendor Advisory
https://access.redhat.com/security/cve/CVE-2026-7307
Source: secalert@redhat.com
Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2476526
Source: secalert@redhat.com
Vendor Advisory

6 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
0.7%
49th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

redhat