Security Advisory

CVE-2021-45105

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2021-12-18 11:55:08

Last updated 2026-05-29 11:45:26

Assigner apache

CVSS score not scored

State PUBLISHED

Description

Apache Log4j2 versions 2.0-alpha1 through 2.16.0 (excluding 2.12.3 and 2.3.1) did not protect from uncontrolled recursion from self-referential lookups. This allows an attacker with control over Thread Context Map data to cause a denial of service when a crafted string is interpreted. This issue was fixed in Log4j 2.17.0, 2.12.3, and 2.3.1.

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