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 using DefaultLdapRealm
Upgrade to Apache Shiro 2.2.1 or 3.0.0-alpha-2 or later, which fixes the issue.
This issue affects all Apache Shiro versions through 2.2.0, and 3.0.0-alpha-1 when using DefaultLdapRealm
Upgrade to Apache Shiro 2.2.1 or 3.0.0-alpha-2 or later, which fixes the issue.
Advisories
| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-x96m-rh44-vgv8 | Apache Shiro: LDAP DN Injection in DefaultLdapRealm |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Thu, 18 Jun 2026 04:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Apache
Apache shiro |
|
| Vendors & Products |
Apache
Apache shiro |
|
| Metrics |
ssvc
|
Wed, 17 Jun 2026 14:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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 using DefaultLdapRealm Upgrade to Apache Shiro 2.2.1 or 3.0.0-alpha-2 or later, which fixes the issue. | |
| Title | Apache Shiro: LDAP DN Injection in DefaultLdapRealm | |
| Weaknesses | CWE-90 | |
| References |
| |
| Metrics |
cvssV4_0
|
Projects
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Status: PUBLISHED
Assigner: apache
Published:
Updated: 2026-06-17T17:02:22.861Z
Reserved: 2026-05-28T17:20:37.590Z
Link: CVE-2026-49268
Updated: 2026-06-17T17:02:22.861Z
No data.
No data.
OpenCVE Enrichment
Updated: 2026-06-18T14:00:16Z
Weaknesses
Github GHSA