AUGUST 17, 2026
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Case File

CVE-2026-49268

CRITICAL · CVSS 9.1 EPSS 0.49%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-06-17 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.1. It affects Apache. It may be remotely exploitable.

CVE
CVE-2026-49268
Severity
CRITICAL
CVSS
9.1
EPSS
0.49%
Apache

Original NVD Description

A remote attacker can inject LDAP special characters into the Distinguished Name (DN) construction in DefaultLdapRealm class. User-supplied username input is directly concatenated into the LDAP DN template without any escaping of RFC 2253 special characters. This allows an attacker to manipulate the DN structure used for LDAP bind authentication, potentially bypassing authentication or impersonating other users. This issue affects all Apache Shiro versions through 2.2.0, and 3.0.0-alpha-1 when usingĀ DefaultLdapRealm Upgrade to Apache Shiro 2.2.1 or 3.0.0-alpha-2 or later, which fixes the issue.

Related CVEs

Other vulnerabilities affecting the same vendor(s)