CVE-2026-90979 LDAPCache - LDAP Injection

LDAPCache and LDAPBackingEngine contain an LDAP injection caused by improper escaping of special characters in user input within LDAP search filters, letting attackers manipulate filter structure to over-grant roles or affect login resolution, exploit requires direct use of LDAPCache bypassing login modules.

CVSS base score 7.3 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.44% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
LDAP Injection
Impact
Privilege Escalation, Broken Access Control
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Published
28 September 2026
Updated
15 October 2026
Weakness
CWE-90

Vendor fix

Apply proper RFC 4515 escaping to all user inputs in LDAP filters or update to a version that fixes escaping in LDAPCache and LDAPBackingEngine.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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