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Advisory record · GHSA-x96m-rh44-vgv8

Apache Shiro: LDAP DN Injection in DefaultLdapRealm

CVSS 8.8 HighEPSS 0.0051 · 43rd percentile

Published by the GitHub Advisory Database at 17 Jun 2026, 18:35 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
org.apache.shiro:shiro-coreMaven<2.2.1 || >=3.0.0-alpha-0, <3.0.0-alpha-22.2.1, 3.0.0-alpha-2
Identifiers
GHSA-x96m-rh44-vgv8 · CVE-2026-49268
Weakness (CWE)
CWE-90
Tags
Published
17 Jun 2026
Updated
10 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Apache Shiro (org.apache.shiro:shiro-core) versions before 2.2.1 and 3.0.0-alpha-1 are affected when using DefaultLdapRealm. A remote attacker can inject LDAP special characters through the username, altering the distinguished name used for LDAP bind authentication, which could allow authentication bypass or impersonation of other users. Upgrade to Apache Shiro 2.2.1 or 3.0.0-alpha-2 or later.

Written 2 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
8.8 High 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/S:P/AU:Y/R:A/RE:L/U:Red CNA (apache)
  • CISA KEV Not listed.
  • EPSS 0.0051, the 43rd percentile, on 9 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:17 UTC First seen by agentprime
  2. 31 Oct 2026, 14:17 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.