PYSEC-2026-435 Open WebUI has an LDAP Empty Password Authentication Bypass

LDAP Empty Password Authentication Bypass Affected Component LDAP authentication endpoint: - backend/openwebui/routers/auths.py lines 468-477, user bind with empty password - backend/openwebui/models/auths.py lines 58-60, LdapForm model Affected Versions Current main branch commit 6fdd19bf1 and...

PYSEC-2026-438 OpenViking: Unauthenticated remote bot control via OpenAPI HTTP routes

OpenViking prior to commit c7bb167 contains an authentication bypass vulnerability in the VikingBot OpenAPI HTTP route surface where the authentication check fails open when the apikey configuration value is unset or empty. Remote attackers with network access to the exposed service can invoke...

PYSEC-2026-419 mlflow: FastAPI job endpoints under `/ajax-api/3.0/jobs/*` are not protected by authentication or authorization

In mlflow/mlflow, the FastAPI job endpoints under /ajax-api/3.0/jobs/ are not protected by authentication or authorization when the basic-auth app is enabled. This vulnerability affects the latest version of the repository. If job execution is enabled MLFLOWSERVERENABLEJOBEXECUTION=true and any j...

Marimo: Pre-Auth Remote Code Execution via Terminal WebSocket Authentication Bypass

SummaryMarimo 19.6k stars has a Pre-Auth RCE vulnerability. The terminal WebSocket endpoint /terminal/ws lacks authentication validation, allowing an unauthenticated attacker to obtain a full PTY shell and execute arbitrary system commands.Unlike other WebSocket endpoints e.g., /ws that correctly...

PYSEC-2026-390 LiteLLM: Authentication bypass via OIDC userinfo cache key collision

Impact When JWT authentication is enabled enablejwtauth: true, the OIDC userinfo cache uses token:20 as the cache key. JWT headers produced by the same signing algorithm generate identical first 20 characters. This configuration option is not enabled by default. Most instances are not affected. A...

PYSEC-2026-407 Marimo: Pre-Auth Remote Code Execution via Terminal WebSocket Authentication Bypass

Summary Marimo 19.6k stars has a Pre-Auth RCE vulnerability. The terminal WebSocket endpoint /terminal/ws lacks authentication validation, allowing an unauthenticated attacker to obtain a full PTY shell and execute arbitrary system commands. Unlike other WebSocket endpoints e.g., /ws that correct...

PYSEC-2026-468 PraisonAI Has Authentication Bypass via OAuthManager.validate_token()

Summary OAuthManager.validatetoken returns True for any token not found in its internal store, which is empty by default. Any HTTP request to the MCP server with an arbitrary Bearer token is treated as authenticated, granting full access to all registered tools and agent capabilities. Details...

PYSEC-2026-415 MLflow authentication requirement bypass can allow a user to arbitrarily create an account

An attacker is able to arbitrarily create an account in MLflow bypassing any authentication requirement...

PYSEC-2026-519 Ray OS Command Injection vulnerability

A command injection exists in Ray's cpuprofile URL parameter allowing attackers to execute os commands on the system running the ray dashboard remotely without authentication...

PYSEC-2026-329 Django-Unicorn Class Pollution Vulnerability, Leading to XSS, DoS and Authentication Bypass

Summary Django-Unicorn is vulnerable to python class pollution vulnerability, a new type of vulnerability categorized under CWE-915. The vulnerability arises from the core functionality setpropertyvalue, which can be remotely triggered by users by crafting appropriate component requests and feedi...

PYSEC-2026-252 acryl-datahub missing JWT signature check

Missing JWT signature check GHSL-2022-078 The StatelessTokenService of the DataHub metadata service GMS does not verify the signature of JWT tokens. This allows an attacker to connect to DataHub instances as any user if Metadata Service authentication is enabled. This vulnerability occurs because...

PYSEC-2026-433 OpenStack Octavia Amphora-Agent not requiring Client-Certificate

Amphora Images in OpenStack Octavia =0.10.0 =3.0.0 =4.0.0 4.1.0 allows anyone with access to the management network to bypass client-certificate based authentication and retrieve information or issue configuration commands via simple HTTP requests to the Agent on port https/9443, because the...

gnutls: gnutls: Authentication Bypass via NUL Character in Username

A flaw was found in gnutls. Servers configured with RSA-PSK Rivest–Shamir–Adleman – Pre-Shared Key wrongfully matched usernames containing a NUL character with truncated usernames. A remote attacker could exploit this by sending a specially crafted username, leading to an authentication bypass...

tomcat: Apache Tomcat: Authentication bypass via missing critical step in JNDIRealm GSSAPI configuration

A flaw was found in Apache Tomcat. When the JNDIRealm was configured to authenticate binds using GSSAPI, an attacker could exploit a missing critical step in the authentication process. This allowed the attacker to bypass password verification and authenticate without providing the correct...

CVE-2026-57964

A flaw was found in spice-vdagent. On macOS and BSD platforms, an unprivileged local user can bypass authentication by connecting to the Unix Domain Socket Client/Server UDSCS socket. This allows the unauthorized user to receive host-to-guest messages, including clipboard data and file transfers,...

EUVD-2026-40046

A vulnerability was found in Feehi CMS up to 2.1.1. This vulnerability affects unknown code of the file /api/articles of the component REST API Endpoint. Performing a manipulation results in missing authentication. The attack may be initiated remotely. The exploit has been made public and could b...

gnutls: gnutls: Authentication Bypass via NUL Character in Username

A flaw was found in gnutls. Servers configured with RSA-PSK Rivest–Shamir–Adleman – Pre-Shared Key wrongfully matched usernames containing a NUL character with truncated usernames. A remote attacker could exploit this by sending a specially crafted username, leading to an authentication bypass...

Important: Red Hat Security Advisory: gnutls and libtasn1 security update

An update for multiple packages is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On. Red Hat Product Security has rated this update as having a security impact of Important. A Common...

Important: Red Hat Security Advisory: gnutls and libtasn1 security update

An update for multiple packages is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Service. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability...

gnutls: gnutls: Authentication Bypass via NUL Character in Username

A flaw was found in gnutls. Servers configured with RSA-PSK Rivest–Shamir–Adleman – Pre-Shared Key wrongfully matched usernames containing a NUL character with truncated usernames. A remote attacker could exploit this by sending a specially crafted username, leading to an authentication bypass...