Bug 2440149 (CVE-2026-2575) - CVE-2026-2575 keycloak: Keycloak: Denial of Service due to excessive SAMLRequest decompression
Summary: CVE-2026-2575 keycloak: Keycloak: Denial of Service due to excessive SAMLRequ...
Keywords:
Status: NEW
Alias: CVE-2026-2575
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-02-16 08:39 UTC by OSIDB Bzimport
Modified: 2026-02-16 08:48 UTC (History)
8 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-02-16 08:39:23 UTC 
Summary:
An unauthenticated remote attacker can trigger a Denial of Service (DoS) by sending a highly compressed SAMLRequest via the SAML Redirect Binding. The server fails to enforce size limits during DEFLATE decompression, leading to an OutOfMemoryError (OOM) and process termination.
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