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CVE-2026-49268 is an LDAP Distinguished Name injection vulnerability in Apache Shiro's DefaultLdapRealm. In affected LDAP-authentication deployments, user-controlled usernames are concatenated into a DN template without escaping RFC 2253 special characters. An attacker can inject DN metacharacters to alter the DN used for LDAP bind authentication, potentially causing authentication bypass or impersonation. The issue affects shiro-core versions through 2.2.0 and 3.0.0-alpha-0 through 3.0.0-alpha-1 when DefaultLdapRealm is used.
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No valid public exploits. Mallory filtered out 2 candidates as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
16 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An Apache Shiro authentication bypass vulnerability mentioned only in related reading.
Mentioned only as related reading; no substantive discussion in this content.
Mentioned only as related reading; no substantive discussion in the content.
An Apache Shiro vulnerability mentioned only in related reading.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.