python-ldap is Vulnerable to Improper Encoding or Escaping of Output and Improper Null Termination

Summaryldap.dn.escapednchars escapes \x00 incorrectly by emitting a backslash followed by a literal NUL byte instead of the RFC-4514 hex form \00. Any application that uses this helper to construct DNs from untrusted input can be made to consistently fail before a request is sent to the LDAP serv...

PYSEC-2026-1846 python-ldap is Vulnerable to Improper Encoding or Escaping of Output and Improper Null Termination

Summary ldap.dn.escapednchars escapes \x00 incorrectly by emitting a backslash followed by a literal NUL byte instead of the RFC-4514 hex form \00. Any application that uses this helper to construct DNs from untrusted input can be made to consistently fail before a request is sent to the LDAP...

AZL-92189 CVE-2026-14940 affecting package 389-ds-base 3.1.1-12

A heap-buffer-overflow flaw was found in 389 Directory Server 389-ds-base. When normalizing a Distinguished Name DN that contains a legacy-quoted value encoding a multivalued nested Relative Distinguished Name RDN, the server can write past the end of a heap allocation while sorting RDN...

DEBIAN-CVE-2026-14940

A heap-buffer-overflow flaw was found in 389 Directory Server 389-ds-base. When normalizing a Distinguished Name DN that contains a legacy-quoted value encoding a multivalued nested Relative Distinguished Name RDN, the server can write past the end of a heap allocation while sorting RDN...

CVE-2026-14940

A heap-buffer-overflow flaw was found in 389 Directory Server 389-ds-base. When normalizing a Distinguished Name DN that contains a legacy-quoted value encoding a multivalued nested Relative Distinguished Name RDN, the server can write past the end of a heap allocation while sorting RDN...

CVE-2026-14940 389-ds-base: 389-ds-base: heap-buffer-overflow in dn normalization via quoted multivalued rdn

A heap-buffer-overflow flaw was found in 389 Directory Server 389-ds-base. When normalizing a Distinguished Name DN that contains a legacy-quoted value encoding a multivalued nested Relative Distinguished Name RDN, the server can write past the end of a heap allocation while sorting RDN...

Linux Distros Unpatched Vulnerability : CVE-2026-49268

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A remote attacker can inject LDAP special characters into the Distinguished Name DN construction in DefaultLdapRealm class. User-supplied username input is...

GHSA-6MWX-4547-5VC9 OpenBao: LDAPi ldaputil (wrong escape func)

Description Component sdk/helper/ldaputil/client.go — the shared LDAP utility library used by both the LDAP authentication backend and OpenLDAP secrets engine to construct LDAP search filters and bind DNs. Root Cause The LDAP utility contains a function selection error that causes incorrect...

LDAP Injection

Overview Affected versions of this package are vulnerable to LDAP Injection in the GetUserDN process due to improper escaping of user-controlled input when constructing LDAP search filters. An attacker can impersonate arbitrary users, including administrative accounts, by injecting crafted input...

LDAP Injection

Overview org.apache.shiro:shiro-core is a powerful and easy-to-use Java security framework that performs authentication, authorization, cryptography, and session management. Affected versions of this package are vulnerable to LDAP Injection in the DefaultLdapRealm class. An attacker can bypass...

CVE-2026-47838

SubjectDnX509PrincipalExtractor does not correctly handle certain malformed X.509 certificate CN values, which can lead to reading the wrong value for the username. In a carefully crafted certificate, this can lead to an attacker impersonating another user. Affected versions: Spring Security 5.7....

CVE-2026-47838 Unauthorized User Impersonation when Using X.509 Client Certificates

SubjectDnX509PrincipalExtractor does not correctly handle certain malformed X.509 certificate CN values, which can lead to reading the wrong value for the username. In a carefully crafted certificate, this can lead to an attacker impersonating another user. Affected versions: Spring Security 5.7....

CVE-2026-47838

Spring Security CVE-2026-47838 involves the SubjectDnX509PrincipalExtractor and malformed X.509 CN values, causing the extracted username to be read incorrectly and potentially allowing an attacker to impersonate another user. Affected versions include Spring Security 5.7.0–5.7.24; 5.8.0–5.8.26; ...

CVE-2026-47838 Unauthorized User Impersonation when Using X.509 Client Certificates

SubjectDnX509PrincipalExtractor does not correctly handle certain malformed X.509 certificate CN values, which can lead to reading the wrong value for the username. In a carefully crafted certificate, this can lead to an attacker impersonating another user. Affected versions: Spring Security 5.7....

ANT-2026-2FETJP49 · randombit/botan · Improper Certificate Validation

improper-cert-validation high CVE-2026-34580 GHSA-v782-6fq4-q827 Severity Claude high · Security research firm - · Maintainer - REPORT Anthropic's analysis of this finding, sealed at approval. ANT-2026-2FETJP49: security certificateknown: Complete x509 bypass CertificateStore::certificateknown...

CVE-2025-13392: Improper Check for Unusual or Exceptional Conditions

Improper check for unusual or exceptional conditions vulnerability in SSO in Synology DiskStation Manager DSM before 7.2.2-72806-5 and 7.3.1-86003-1 7.2.1-69057 is not affected allows remote attackers to bypass authentication with prior knowledge of the distinguished name DN...

CVE-2026-41919 Apache OFBiz: Authentication Bypass due to Improper Neutralization of LDAP Special Elements in DN Construction

Improper Neutralization of Special Elements used in an LDAP Query 'LDAP Injection' vulnerability in Apache OFBiz. This issue affects Apache OFBiz: before 24.09.06. Users are recommended to upgrade to version 24.09.06, which fixes the issue...

CVE-2026-41919 Apache OFBiz: Authentication Bypass due to Improper Neutralization of LDAP Special Elements in DN Construction

Improper Neutralization of Special Elements used in an LDAP Query 'LDAP Injection' vulnerability in Apache OFBiz. This issue affects Apache OFBiz: before 24.09.06. Users are recommended to upgrade to version 24.09.06, which fixes the issue...

CVE-2026-41919 Apache OFBiz: Authentication Bypass due to Improper Neutralization of LDAP Special Elements in DN Construction

Improper Neutralization of Special Elements used in an LDAP Query 'LDAP Injection' vulnerability in Apache OFBiz. This issue affects Apache OFBiz: before 24.09.06. Users are recommended to upgrade to version 24.09.06, which fixes the issue...

Improper Certificate Validation

Overview Affected versions of this package are vulnerable to Improper Certificate Validation due to ineffective hostname verification in the TLS certificate validation. An attacker can bypass expected hostname checks by presenting a certificate signed by the trusted certificate authority but with...