CVE-2026-49434 Apache ActiveMQ Broker, Apache ActiveMQ, Apache ActiveMQ All: LdapNetworkConnector instantiates denied transports and a remote-properties broker

Improper Input Validation vulnerability in Apache ActiveMQ Broker, Apache ActiveMQ, Apache ActiveMQ All. An attacker that has access to publish or modify entries in LDAP that match the configured searchBase and searchFilter can instantiate denied transports inside the broker JVM. This can be used...

FortiOS - Insecure LDAP Configuration Detection

The FortiGate LDAP configuration was detected to be insecure due to missing ca-cert, secure LDAPS, or server-identity-check, potentially exposing LDAP communications to credential interception or man-in-the-middle attacks under specific network conditions. id: CVE-2019-5591 info: name: FortiOS -...

Oracle Linux 8 : 389-ds:1.4 (ELSA-2026-26459)

The remote Oracle Linux 8 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-26459 advisory. - Resolves: RHEL-178076 - CVE-2026-9064 389-ds:1.4/389-ds-base: unbounded LDAP controls count in getldapmessagecontrolsext causes CPU and heap amplification...

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...

Oracle Linux 9 : 389-ds-base (ELSA-2026-26455)

The remote Oracle Linux 9 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-26455 advisory. - Resolves: RHEL-178086 - CVE-2026-9064 389-ds-base: 389-ds-base: unbounded LDAP controls count in getldapmessagecontrolsext causes CPU and heap amplification...

EUVD-2026-38768

Jenkins Active Directory Plugin 2.41.1 and earlier does not escape the user name before building the LDAP search filter in the Windows native ADSI authentication path, allowing unauthenticated attackers to inject LDAP wildcard characters to enumerate directory entries and to authenticate as a...

PT-2026-51549

Name of the Vulnerable Software and Affected Versions Tenable Identity Exposure affected versions not specified Description Multiple unauthenticated API endpoints under '/w/api/' expose sensitive application configuration data to remote attackers. The leaked information includes cleartext LDAP...

CVE-2026-47203

CVE-2026-47203 (Authelia) affects Authelia 4.38.0–4.39.19 where using Basic Auth on the authz verification endpoint exposes a bug: the username extracted from the Authorization header is passed to the ban/attempt regulation as-is, while LDAP binds are case-insensitive but regulation SQL lookups c...

Astra Linux – Vulnerability in Ansible

A flaw was discovered in Ansible Engine, affecting versions 2.7.x before 2.7.17, 2.8.x before 2.8.11, and 2.9.x before 2.9.7. It also affects Ansible Tower in versions 3.4.5 and 3.5.5, as well as 3.6.3, when the ldapattr and ldapentry community modules are used. This issue exposes the LDAP bind...

Astra Linux – Vulnerability in Apache Log4j1.2

The JMSSink in all versions of Log4j 1.x is vulnerable to deserialization of untrusted data when the attacker has write access to the Log4j configuration, or when the configuration references an LDAP service to which the attacker has access. The attacker can provide a...

Astra Linux – Vulnerability in the 389-DS-base

A flaw was discovered in the ‘deref’ plugin of 389-ds-base, where it could use the ‘search’ permission to display attribute values. In some configurations, this could allow an authenticated attacker to view private attributes, such as password hashes...

Astra Linux – Vulnerability in the 389-DS-base

When binding against a DN during authentication, the response from 389-ds-base will differ depending on whether the DN exists or not. This can be exploited by an unauthenticated attacker to check the existence of an entry in the LDAP database...

Astra Linux – Vulnerability in the 389-DS-base

A double-free was detected in the way that 389-ds-base handles virtual attribute contexts during persistent searches. An attacker could send a series of search requests, causing the server to behave unexpectedly and potentially crashing it...

Astra Linux – Vulnerability in Samba

The Samba AD DC administration tool, when working against a remote LDAP server, will, by default, send new or reset passwords over a signed-only connection...

Astra Linux – Vulnerability in Samba

MaxQueryDuration is not honored in Samba AD DC LDAP...

Astra Linux – Vulnerability in the 389-DS-base

When using a syncrepl client in 389-ds-base, an authenticated attacker can cause a NULL pointer dereference using a specially crafted query, resulting in a crash...

Astra Linux – Vulnerability in the 389-DS-base

A flaw was discovered in RHDS 11 and RHDS 12. While browsing entries using LDAP, the system attempts to decode the userPassword attribute instead of the userCertificate attribute, which could lead to sensitive information being leaked. An attacker with a local account where cockpit-389-ds is...

PT-2026-51108

Name of the Vulnerable Software and Affected Versions OpenBao affected versions not specified Description An issue exists in the shared LDAP utility library sdk/helper/ldaputil/client.go used by the LDAP authentication backend and OpenLDAP secrets engine. The GetUserDN function incorrectly uses...

UBUNTU-CVE-2026-49268

A remote attacker can inject LDAP special characters into the Distinguished Name DN construction in DefaultLdapRealm class. User-supplied username input is directly concatenated into the LDAP DN template without any escaping of RFC 2253 special characters. This allows an attacker to manipulate th...

CVE-2026-49268

The CVE-2026-49268 issue affects Apache Shiro’s DefaultLdapRealm where user input is concatenated into the LDAP DN template without escaping RFC 2253 characters. This LDAP DN injection can alter the bind DN, potentially bypassing authentication or impersonating other users. Technical details conf...