389-ds-base: 389-ds-base: unbounded LDAP controls count in get_ldapmessage_controls_ext() causes CPU and heap amplification (remote DoS)

A flaw was found in 389-ds-base. The getldapmessagecontrolsext function in the LDAP server does not enforce an upper bound on the number of controls per LDAP message. A remote, unauthenticated attacker can send a specially crafted LDAP request containing hundreds of thousands of minimal controls...

PT-2026-49907

Name of the Vulnerable Software and Affected Versions Oracle Unified Directory versions 12.2.1.4.0 Oracle Unified Directory versions 14.1.2.1.0 Description An issue in the OUD Core component of Oracle Fusion Middleware allows an unauthenticated attacker with network access via LDAP Lightweight...

CVE-2026-45559

CVE-2026-45559 affects Roxy-WI web interface (versions ≤ 8.2.6.4). The vulnerability arises from get_ldap_email in app/modules/roxywi/user.py, where the LDAP search filter is built via string concatenation and the URL username parameter is used verbatim without input validation or LDAP escaping. ...

Improper Validation of Certificate with Host Mismatch

Overview org.apache.directory.api:api-ldap-client-api is a LDAP Client API. Affected versions of this package are vulnerable to Improper Validation of Certificate with Host Mismatch in the TLS server identity verification. An attacker can intercept and impersonate the server by presenting a...

Nextcloud 访问控制错误漏洞

Nextcloud is an open-source, self-hosted communication platform for file synchronization and sharing developed by the German company Nextcloud. In versions 1.3.6 to 8.4.0, there was a vulnerability related to access control. This vulnerability stemmed from improper checks, allowing users...

CVE-2026-9801 Keycloak: keycloak: denial of service via malformed ldap password policy response

A flaw was found in Keycloak. A remote attacker with high privileges, such as a realm administrator configuring a malicious Lightweight Directory Access Protocol LDAP server or an attacker compromising an upstream LDAP server, could exploit this vulnerability. By sending a malformed LDAP password...

PT-2026-44194

Name of the Vulnerable Software and Affected Versions Keycloak affected versions not specified Description A flaw allows a remote attacker with high privileges, such as a realm administrator configuring a malicious Lightweight Directory Access Protocol LDAP server or an attacker who has compromis...

CVE-2026-34339

Null pointer dereference in Windows LDAP - Lightweight Directory Access Protocol allows an authorized attacker to deny service locally...

EUVD-2026-29966

When the BIG-IP Configuration utility is configured to use Lightweight Directory Access Protocol LDAP authentication, undisclosed traffic can cause the httpd process to exhaust the available file descriptors. Note: Software versions which have reached End of Technical Support EoTS are not...

CVE-2026-34339

Technical details about CVE-2026-34339 (Windows LDAP denial of service) are not publicly available in the provided connected documents. Monitor for updates from Microsoft/NVD for affected products, vectors, and fixes.

ldap3_proto has LDAP Filter stack exhaustion

Impact LDAP queries are not validated for depth, which can cause the parser both PEG and ASN to exhaust the stack. This may cause a denial of service in applications that process queries. Workarounds N/A Resources Related to GHSA-r5fr-9gmv-jggh...

CVE-2026-34578 OPNsense has an LDAP Injection via Unsanitized Username in Authentication

OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.6, OPNsense's LDAP authentication connector passes the login username directly into an LDAP search filter without calling ldapescape. An unauthenticated attacker can inject LDAP filter metacharacters into the username field ...

CVE-2026-25560 WeKan < 8.19 LDAP Authentication Filter Injection

WeKan versions prior to 8.19 contain an LDAP filter injection vulnerability in LDAP authentication. User-supplied username input is incorporated into LDAP search filters and DN-related values without adequate escaping, allowing an attacker to manipulate LDAP queries during authentication...

[SECURITY] Fedora 42 Update: bind-dyndb-ldap-11.11-9.fc42

This package provides an LDAP back-end plug-in for BIND. It features support for dynamic updates and internal caching, to lift the load off of your LDAP server...

LDAP Tampering Vulnerability

Improper input validation in Windows LDAP - Lightweight Directory Access Protocol allows an authorized attacker to perform tampering over a network...

CVE-2026-21880 Kanboard LDAP Injection Vulnerability can Lead to User Enumeration and Information Disclosure

Kanboard is project management software focused on Kanban methodology. Versions 1.2.48 and below have an LDAP Injection vulnerability in the LDAP authentication mechanism. User-supplied input is directly substituted into LDAP search filters without proper sanitization, allowing attackers to...

CVE-2025-62795

JumpServer is an open source bastion host and an operation and maintenance security audit system. Prior to v3.10.21-lts and v4.10.12-lts, a low-privileged authenticated user can invoke LDAP configuration tests and start LDAP synchronization by sending crafted messages to the /ws/ldap/ WebSocket...

CVE-2024-13999

Nagios XI versions prior to 2024R1.1.3, under certain circumstances, disclose the server's Active Directory AD or LDAP authentication token to an authenticated user. Exposure of the server’s AD/LDAP token could allow domain-wide authentication misuse, escalation of privileges, or further compromi...

CVE-2023-53690

Nagios Fusion versions prior to 4.2.0 contain a stored cross-site scripting XSS vulnerability in the LDAP/AD authentication-server configuration. Unsanitized user input can be stored and later rendered in the administrative UI, causing JavaScript to execute in the browser of any user who views th...

org.apache.cxf/cxf: CXF JMS Code Execution Vulnerability

A flaw was found in org.apache.cxf/cxf, where untrusted users can configure JMS to allow the specification of RMI or LDAP URLs, possibly leading to code execution. This vulnerability allows an attacker to provide malicious protocol URLs during JMS configuration...