A flaw was found in the SAML implementation of Keycloak, an open-source identity and access management solution.
A flaw was found in the SAML implementation of Keycloak, an open-source identity and access management solution. The SAML Artifact Resolution and ECP SOAP endpoints do not properly limit the size or complexity of incoming XML requests. An unauthenticated remote attacker can exploit this by sending specially crafted, large XML messages that cause the server to consume excessive memory. This leads to the application running out of memory and crashing, resulting in a denial of service for all users.
Read at NIST National Vulnerability Database (CVE API 2.0)
- Vendor
- Red Hat
- Product
- Red Hat Build of Keycloak, Red Hat Single Sign-On 7
- CVSS v3.1
- 7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness
- CWE-400
- Exposure class
- Identity, Web platform
- NVD status
- Awaiting Analysis
Why it ranks 37 (Notable)
- CVSS v3.1 7.5 high
- Exposed product class: identity
- Recency: items published within 24 hours gain 15, within 72 hours 6, within 7 days 2.
Links
- NIST National Vulnerability Database (CVE API 2.0) (nvd.nist.gov)
- CVE-2026-82965 on this site · NVD · CVE.org · Vulnpedia
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