DEBIAN-CVE-2026-49268

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Source

https://security-tracker.debian.org/tracker/CVE-2026-49268

Import Source

https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-49268.json

JSON Data

https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-49268

Upstream

CVE-2026-49268

Published

2026-06-17T14:17:56Z

Modified

2026-09-14T17:03:43Z

Severity

9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator

Summary

[none]

Details

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.

References

https://security-tracker.debian.org/tracker/CVE-2026-49268

Affected packages

Debian:12 / shiro

Package

Name: shiro
Purl: pkg:deb/debian/shiro?arch=source&distro=bookworm

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.3.2-5

1.3.2-6

Ecosystem specific

{
    "urgency":  "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-49268.json"

Debian:13 / shiro