Open WebUI 'LDAP Empty Password' - Authentication Bypass

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the LDAP authentication endpoint does not validate that the submitted password is non-empty before performing a Simple Bind against the LDAP server. The LdapForm Pydantic model accep...

sssd: sssd: sudo LDAP provider searches entire directory tree for sudoRole objects by default, enabling privilege escalation

A flaw was found in SSSD's LDAP sudo provider. When the ldapsudosearchbase option is not explicitly configured, SSSD searches the entire LDAP directory tree for sudoRole objects. An authenticated attacker with write access to any subtree can inject a sudoRole object granting root-level sudo...

dovecot: Dovecot: Denial of Service via excessive IMAP bracing

A flaw was found in Dovecot. A remote attacker can exploit this vulnerability by sending excessive open braces over the Internet Message Access Protocol IMAP, leading to uncontrolled memory usage. This can cause the affected system to consume memory up to its configured limit, resulting in a Deni...

EUVD-2026-52022

In Bouncy Castle for Java before 1.85, LDAP filter injection in legacy jdk1.4 LDAPStoreHelper...

CVE-2026-59652 LDAP filter injection in legacy jdk1.4 LDAPStoreHelper

In Bouncy Castle for Java before 1.85, LDAP filter injection in legacy jdk1.4 LDAPStoreHelper...

CVE-2026-44617

Apache Zeppelin (LdapRealm) has a LDAP filter injection issue due to escaping using RFC 4514 (DN escaping) instead of RFC 4515 filter escaping. This incomplete fix affects Zeppelin versions 0.11.1, 0.11.2, and 0.12.0 and is a partial remediation of CVE-2024-31867. Upgrading to version 0.12.1 is r...

CVE-2026-44616 Apache Zeppelin: LDAP injection in ActiveDirectoryGroupRealm filter construction

LDAP injection vulnerability in Apache Zeppelin. ActiveDirectoryGroupRealm constructed LDAP search filters without escaping user-controlled input, allowing an authenticated attacker to inject LDAP filter syntax through the user-search endpoint and potentially expose directory...

[slackware-security] samba

New samba packages are available for Slackware 15.0 and -current to fix security issues. Here are the details from the Slackware 15.0 ChangeLog: extra/samba-4.22.11-i586-1slack15.0.txz: Upgraded. This is a security release in order to address the following defects: TSIG packet with name compressi...

RockyLinux 8 : sssd (RLSA-2026:46990)

The remote RockyLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:46990 advisory. sssd: sssd: sudo LDAP provider searches entire directory tree for sudoRole objects by default, enabling privilege escalation CVE-2026-14474 sssd: sssd:...

PT-2026-65628

A flaw was found in Samba's internal DNS server where unauthenticated TKEY registration requests were added to the TKEY name cache before being rejected. A remote, unauthenticated attacker can exploit this behavior by sending a large number of TKEY requests with arbitrary names, exhausting the...

ALSA-2026:46990 Important: sssd security, bug fix, and enhancement update

The System Security Services Daemon SSSD service provides a set of daemons to manage access to remote directories and authentication mechanisms. It also provides the Name Service Switch NSS and the Pluggable Authentication Modules PAM interfaces toward the system, and a pluggable back-end system ...

BIT-OPENBAO-2025-55001 OpenBao LDAP MFA Enforcement Bypass When Using Username As Alias

OpenBao exists to provide a software solution to manage, store, and distribute sensitive data including secrets, certificates, and keys. In versions 2.3.1 and below, OpenBao allowed the assignment of policies and MFA attribution based upon entity aliases, chosen by the underlying auth method. Whe...

OESA-2026-3150 sssd security update

Provides a set of daemons to manage access to remote directories and authentication mechanisms. It provides an NSS and PAM interface toward the system and a pluggable back end system to connect to multiple different account sources. It is also the basis to provide client auditing and policy...

OESA-2026-3128 389-ds-base security update

389-ds-base is an LDAPv3 compliant server which includes the LDAP server and command line utilities for server administration. Security Fixes: 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...

PT-2026-64295

Name of the Vulnerable Software and Affected Versions Loytec LIP-ME201C versions prior to 8.4.17 Loytec L-INX versions prior to 8.4.17 Loytec L-GATE versions prior to 8.4.17 Loytec L-ROC versions prior to 8.4.17 Loytec L-IOB versions prior to 8.4.17 Loytec L-DALI versions prior to 8.4.17 Loytec...

dovecot: Dovecot: Denial of Service via excessive IMAP bracing

A flaw was found in Dovecot. A remote attacker can exploit this vulnerability by sending excessive open braces over the Internet Message Access Protocol IMAP, leading to uncontrolled memory usage. This can cause the affected system to consume memory up to its configured limit, resulting in a Deni...

CVE-2026-57962

A flaw was found in Thunderbird. A remote attacker, by operating a malicious Lightweight Directory Access Protocol LDAP server, can cause a Thunderbird client to crash due to memory exhaustion. This occurs when a user's Thunderbird client is configured to query the malicious LDAP server for...

EUVD-2026-46834

Vulnerability in the Oracle Unified Directory product of Oracle Fusion Middleware component: OUD Core. Supported versions that are affected are 12.2.1.4.0 and 14.1.2.1.0. Easily exploitable vulnerability allows high privileged attacker with network access via LDAP to compromise Oracle Unified...

EUVD-2026-46820

Vulnerability in the Oracle Unified Directory product of Oracle Fusion Middleware component: OUD Core. The supported version that is affected is 14.1.2.1.0. Easily exploitable vulnerability allows low privileged attacker with network access via LDAP to compromise Oracle Unified Directory. While t...

EUVD-2026-46815

Vulnerability in the Oracle Unified Directory product of Oracle Fusion Middleware component: OUD Core. Supported versions that are affected are 12.2.1.4.0 and 14.1.2.1.0. Difficult to exploit vulnerability allows unauthenticated attacker with network access via LDAP to compromise Oracle Unified...