Vulnerabilities in Oracle Fusion Middleware products

Oracle has identified several vulnerabilities in various products within the Oracle Fusion Middleware suite, including WebLogic Server, WebCenter Content, WebCenter Sites, WebCenter Portal, WebCenter Enterprise Capture, Identity Manager, Identity Manager Connector, Access Manager, Coherence,...

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-2026-35563

It was identified that the LDAP client implementation in version 2.1.7 does not verify if the server certificate matches the intended LDAP hostname. While the underlying code validates the certificate chain against a trusted authority, the absence of endpoint identification allows a valid...

WatchGuard FireboxV LDAP Race Condition

WatchGuard FireboxV with firmware version 12.11.6 Build B728370 suffers from a race condition in rscryptosetupldapserver libpkicli.so that allows two concurrently-processed IKEv1 Aggressive Mode packets to trigger a double-free and use-after-Free on the global LDAP connection handle. The research...

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. ...

CVE-2026-41720: Authentication Bypass with Empty Password in Spring LDAP

Spring LDAP's DirContextAuthenticationStrategy implementations do not reject a bind request where a non-empty username is paired with an empty or null password. RFC 4513 Section 5.1.2 defines this as an unauthenticated bind. On LDAP servers that permit such binds, an attacker with a valid usernam...

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-2026-41076

A flaw was found in RT, an open-source issue and ticket tracking system. This vulnerability allows a remote attacker to bypass authentication in RT installations configured to use LDAP/AD Lightweight Directory Access Protocol/Active Directory for user authentication. Under specific LDAP server...

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-2026-48917

CVE-2026-48917 affects Jenkins LDAP Plugin (807.v7d7de30930cf and earlier). The issue is that it deserializes data from LDAP referrals without validation, with CVSS 3.1 base score 6.6 (Medium) and impacts on confidentiality, integrity, and availability rated High. Exploitation details are not pro...

CVE-2026-44052

Netatalk 2.1.0 through 4.4.2 inserts LDAP simple-bind passwords into log output in cleartext, which allows an attacker with access to the log files to obtain LDAP credentials...

CVE-2026-44551

Open WebUI vulnerability CVE-2026-44551: before version 0.9.0, the LDAP authentication endpoint does not validate non-empty passwords, allowing an unauthenticated Simple Bind on many LDAP servers. The LdapForm model accepts password: str without a minimum length, so an empty string can reach the ...

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...

PT-2026-40640

Name of the Vulnerable Software and Affected Versions F5 BIG-IP versions prior to 17.1.3.2 F5 BIG-IP versions prior to 17.5.1.6 F5 BIG-IP versions prior to 21.0.0.2 Description When the BIG-IP Configuration utility is configured to use Lightweight Directory Access Protocol LDAP authentication,...

CVE-2026-34339 Windows Lightweight Directory Access Protocol (LDAP) Denial of Service Vulnerability

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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.