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...

Astra Linux – Vulnerability in Samba

A vulnerability related to information leaks was discovered in Samba’s LDAP server. Due to missing access control checks, a authenticated but unprivileged attacker could discover the names and preserved attributes of deleted objects in the LDAP store...

Astra Linux – Vulnerability in Derby

A cleverly designed username can bypass LDAP authentication checks. In LDAP-authenticated Derby installations, this could allow an attacker to create unnecessary Derby databases, thereby filling up storage space. In LDAP-authenticated Derby installations, the attacker could also execute malware...

Astra Linux – Vulnerability in Zabbix

The request to LDAP is sent before checking the user permissions...

Astra Linux – Vulnerability in curl

There is an improper authentication vulnerability in curl versions 7.33.0 through and including 7.82.0. This vulnerability may allow for the reuse of OAUTH2-authenticated connections without ensuring that the connection was authentically verified with the same credentials used for this transfer...

EUVD-2026-38208

Central Dogma: LDAP injection in SearchFirstActiveDirectoryRealm enables authentication confusion and audit log evasion...

Astra Linux – Vulnerability in Bouncycastle

The Bouncy Castle For Java version prior to 1.74 is affected by an LDAP injection vulnerability. This vulnerability only affects applications that use the LDAP CertStore provided by Bouncy Castle to validate X.509 certificates. During the certificate validation process, Bouncy Castle inserts the...

EulerOS 2.0 SP11 : ruby (EulerOS-SA-2026-3101)

According to the versions of the ruby packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : ERB is a templating system for Ruby. Ruby 2.7.0 before ERB 2.2.0 was published on rubygems.org introduced an @init instance variable guard in...

Cisco IOS XE Software Blocks Extensible Exchange Protocol Denial of Service Vulnerability

A vulnerability in the Blocks Extensible Exchange Protocol BEEP feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. This vulnerability is due to improper handling when parsing a specific BEEP SOAP...

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...

PT-2026-67245

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

LDAP Injection

Overview org.apache.zeppelin:zeppelin-server is a web-based notebook that enables interactive data analytics. You can make beautiful data-driven, interactive and collaborative documents with SQL, Scala and more. Affected versions of this package are vulnerable to LDAP Injection through the...

CVE-2026-44617

LDAP filter injection vulnerability in Apache Zeppelin. LdapRealm used RFC 4514 distinguished-name escaping when constructing LDAP search filters instead of RFC 4515 filter escaping, leaving special filter characters insufficiently escaped. This is an incomplete fix of...

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...

EUVD-2026-50414

Courier IMAP before 6.0.1 and Courier Mail Server before 2.0.2 allow authenticated IMAP users to crash the imapd process via deeply nested parenthesized SEARCH queries. The SEARCH command parser allocsearchkey in searchinfo.C recursively descends on nested parenthesized groups through a mutual...

[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:...