CVE-2026-45675 Open WebUI: LDAP and OAuth First-User Race Condition Allows Multiple Admin Accounts

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the LDAP and OAuth authentication flows use a TOCTOU Time-of-Check-Time-of-Use pattern for first-user admin role assignment. The regular signup handler signuphandler in auths.py, lin...

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,...

Empowering IoT Security: On-Device Intrusion Detection in Resource Constrained Devices

IoT devices particularly microcontrollers are challenged by their inherent limitations in processing capabilities, memory capacity, and energy conservation. Securing communication within IoT networks is further complicated by the heterogeneity of devices and the myriad of potential security...

CVE-2026-44304 Lemur: LDAP Filter Injection enables post-authentication privilege escalation

Lemur manages TLS certificate creation. Prior to 1.9.0, Lemur's LDAP authentication module lemur/auth/ldap.py constructs LDAP search filters using unsanitized user input via Python string interpolation. An authenticated LDAP user can inject LDAP filter metacharacters through the username field to...

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.

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

...

PT-2026-40158

Null pointer dereference in Windows LDAP - Lightweight Directory Access Protocol allows an authorized attacker to deny service locally...

BIT-JRE-2020-2800

Vulnerability in the Java SE, Java SE Embedded product of Oracle Java SE component: Lightweight HTTP Server. Supported versions that are affected are Java SE: 7u251, 8u241, 11.0.6 and 14; Java SE Embedded: 8u241. Difficult to exploit vulnerability allows unauthenticated attacker with network acce...

Lightweight JSON text parser 安全漏洞

Lightweight JSON Text Parser is a lightweight JSON text parsing library developed by Tilen Majerle. Version 1.8.1 of Lightweight JSON Text Parser has a security vulnerability. This vulnerability stems from a logical error in the string termination detection mechanism of the streaming JSON parser,...

PT-2026-38721

Vulnerability in the Java SE, Java SE Embedded product of Oracle Java SE component: Lightweight HTTP Server. Supported versions that are affected are Java SE: 7u251, 8u241, 11.0.6 and 14; Java SE Embedded: 8u241. Difficult to exploit vulnerability allows unauthenticated attacker with network acce...

PT-2026-38772

Vulnerability in the Oracle Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE component: Lightweight HTTP Server. Supported versions that are affected are Oracle Java SE: 8u341, 8u345-perf, 11.0.16.1, 17.0.4.1, 19; Oracle GraalVM Enterprise Edition: 20.3.7, 21.3.3 and 22.2.0...

ldap3_proto has LDAP Filter stack exhaustion

Impact LDAP queries are not validated for depth, which can cause the parser both PEG and ASN to exhaust the stack. This may cause a denial of service in applications that process queries. Workarounds N/A Resources Related to GHSA-r5fr-9gmv-jggh...

BIT-JAVA-MIN-2022-21628

Vulnerability in the Oracle Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE component: Lightweight HTTP Server. Supported versions that are affected are Oracle Java SE: 8u341, 8u345-perf, 11.0.16.1, 17.0.4.1, 19; Oracle GraalVM Enterprise Edition: 20.3.7, 21.3.3 and 22.2.0...

BIT-JAVA-2022-21628

Vulnerability in the Oracle Java SE, Oracle GraalVM Enterprise Edition product of Oracle Java SE component: Lightweight HTTP Server. Supported versions that are affected are Oracle Java SE: 8u341, 8u345-perf, 11.0.16.1, 17.0.4.1, 19; Oracle GraalVM Enterprise Edition: 20.3.7, 21.3.3 and 22.2.0...

BIT-JAVA-MIN-2020-2800

Vulnerability in the Java SE, Java SE Embedded product of Oracle Java SE component: Lightweight HTTP Server. Supported versions that are affected are Java SE: 7u251, 8u241, 11.0.6 and 14; Java SE Embedded: 8u241. Difficult to exploit vulnerability allows unauthenticated attacker with network acce...

BIT-JAVA-2020-2800

Vulnerability in the Java SE, Java SE Embedded product of Oracle Java SE component: Lightweight HTTP Server. Supported versions that are affected are Java SE: 7u251, 8u241, 11.0.6 and 14; Java SE Embedded: 8u241. Difficult to exploit vulnerability allows unauthenticated attacker with network acce...

PT-2026-37907

Vulnerability in the Java SE, Java SE Embedded product of Oracle Java SE component: Lightweight HTTP Server. Supported versions that are affected are Java SE: 7u251, 8u241, 11.0.6 and 14; Java SE Embedded: 8u241. Difficult to exploit vulnerability allows unauthenticated attacker with network acce...

PT-2026-37700

Vulnerability in the Java SE, Java SE Embedded product of Oracle Java SE component: Lightweight HTTP Server. Supported versions that are affected are Java SE: 7u251, 8u241, 11.0.6 and 14; Java SE Embedded: 8u241. Difficult to exploit vulnerability allows unauthenticated attacker with network acce...