CVE-2025-27497
HIGHOpenDJ < 4.9.3 - Denial of Service via Alias Loop Dereferencing
Title source: llmDescription
OpenDJ is an LDAPv3 compliant directory service. OpenDJ prior to 4.9.3 contains a denial-of-service (DoS) vulnerability that causes the server to become unresponsive to all LDAP requests without crashing or restarting. This issue occurs when an alias loop exists in the LDAP database. If an ldapsearch request is executed with alias dereferencing set to "always" on this alias entry, the server stops responding to all future requests. Fortunately, the server can be restarted without data corruption. This vulnerability is fixed in 4.9.3.
References (2)
Core 2
Core References
Vendor Advisory x_refsource_confirm
https://github.com/OpenIdentityPlatform/OpenDJ/security/advisories/GHSA-93qr-h8pr-4593
Scores
CVSS v4
8.7
EPSS
0.0036
EPSS Percentile
27.6%
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-835
Status
published
Products (2)
OpenIdentityPlatform/OpenDJ
< 4.9.3
org.openidentityplatform.opendj/opendj-server-legacy
0 - 4.9.3Maven
Published
Mar 05, 2025
Tracked Since
Feb 18, 2026