CVE-2026-2575
CWE-409Published: March 18, 2026· Updated: Mar 18, 2026
Official Description
A flaw was found in Keycloak. An unauthenticated remote attacker can trigger an application level Denial of Service (DoS) by sending a highly compressed SAMLRequest through the SAML Redirect Binding. The server fails to enforce size limits during DEFLATE decompression, leading to an OutOfMemoryError (OOM) and subsequent process termination. This vulnerability allows an attacker to disrupt the availability of the service.
Technical Analysis
CVE-2026-2575 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
CVSS v3.1 Vector Breakdown
Exploit & PoC Resources
All References (4)
Quick Facts
Related CVEs (CWE-409)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-2575 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts