CVE-2026-34052: Missing Release of Memory after Effective Lifetime

LTI JupyterHub Authenticator is a JupyterHub authenticator for LTI. Prior to version 1.6.3, the LTI 1.1 validator stores OAuth nonces in a class-level dictionary that grows without bounds. Nonces are added before signature validation, so an attacker with knowledge of a valid consumer key can send...

PraisonAI security vulnerabilities

PraisonAI is a low-code multi-intelligence body collaboration framework by the individual developer Mervin Praison. PraisonAI suffers from a security vulnerability that stems from the OAuthManager.validatetoken function returning True for any token not found in its internal storage, which can be...

LTI JupyterHub Authenticator security vulnerability

LTI JupyterHub Authenticator is an open-source LTI-based authentication service for JupyterHub. Versions of LTI JupyterHub Authenticator prior to 1.6.3 contained a security vulnerability. This vulnerability stemmed from the unlimited growth of OAuth random numbers, which could lead to...

CVE-2026-34511: Use of Insufficiently Random Values

OpenClaw before 2026.4.2 reuses the PKCE verifier as the OAuth state parameter in the Gemini OAuth flow, exposing it through the redirect URL. Attackers who capture the redirect URL can obtain both the authorization code and PKCE verifier, defeating PKCE protection and enabling token redemption...

CVE-2026-34456

Reviactyl is an open-source game server management panel built using Laravel, React, FilamentPHP, Vite, and Go. From version 26.2.0-beta.1 to before version 26.2.0-beta.5, a vulnerability in the OAuth authentication flow allowed automatic linking of social accounts based solely on matching email...

CVE-2026-34736

Open edX Platform enables the authoring and delivery of online learning at any scale. From the maple release to before the ulmo release, an unauthenticated attacker can fully bypass the email verification process by combining two issues: the OAuth2 password grant issuing tokens to inactive users...

CVE-2026-34736 Open edX Platform: Account Activation Bypass via activation_key Exposure in REST API

Open edX Platform enables the authoring and delivery of online learning at any scale. From the maple release to before the ulmo release, an unauthenticated attacker can fully bypass the email verification process by combining two issues: the OAuth2 password grant issuing tokens to inactive users...

CVE-2026-34083 signalk-server: OAuth Authorization Code Theft via Unvalidated Host Header in OIDC Flow

Signal K Server is a server application that runs on a central hub in a boat. Prior to version 2.24.0, SignalK Server contains a code-level vulnerability in its OIDC login and logout handlers where the unvalidated HTTP Host header is used to construct the OAuth2 redirecturi. Because the redirectU...

CVE-2026-34083

Signal K Server (signalk-server) prior to v2.24.0 contains a code-level vulnerability in its OIDC login/logout flow where an unvalidated HTTP Host header is used to construct the OAuth2 redirect_uri. Because redirectUri is silently unset by default, an attacker can spoof the Host header to direct...

CVE-2026-34083

Signal K Server is a server application that runs on a central hub in a boat. Prior to version 2.24.0, SignalK Server contains a code-level vulnerability in its OIDC login and logout handlers where the unvalidated HTTP Host header is used to construct the OAuth2 redirecturi. Because the redirectU...

CVE-2026-34083 signalk-server: OAuth Authorization Code Theft via Unvalidated Host Header in OIDC Flow

Signal K Server is a server application that runs on a central hub in a boat. Prior to version 2.24.0, SignalK Server contains a code-level vulnerability in its OIDC login and logout handlers where the unvalidated HTTP Host header is used to construct the OAuth2 redirecturi. Because the redirectU...

CVE-2026-33544

Tinyauth is an authentication and authorization server. Prior to version 5.0.5, all three OAuth service implementations GenericOAuthService, GithubOAuthService, GoogleOAuthService store PKCE verifiers and access tokens as mutable struct fields on singleton instances shared across all concurrent...

CVE-2026-33544 Tinyauth has OAuth account confusion via shared mutable state on singleton service instances

Tinyauth is an authentication and authorization server. Prior to version 5.0.5, all three OAuth service implementations GenericOAuthService, GithubOAuthService, GoogleOAuthService store PKCE verifiers and access tokens as mutable struct fields on singleton instances shared across all concurrent...

CVE-2026-29782 OpenSTAManager: Remote Code Execution via Insecure Deserialization in OAuth2

OpenSTAManager is an open source management software for technical assistance and invoicing. Prior to version 2.10.2, the oauth2.php file in OpenSTAManager is an unauthenticated endpoint $skippermissions = true. It loads a record from the zzoauth2 table using the attacker-controlled GET parameter...

CVE-2026-29782

OpenSTAManager CVE-2026-29782 describes an unauthenticated deserialization vulnerability in the OAuth2 flow. The oauth2.php endpoint reads and deserializes the access_token field from zz_oauth2 without class restrictions, enabling an attacker who can modify the database (e.g., via another vulnera...

CVE-2026-29782 OpenSTAManager: Remote Code Execution via Insecure Deserialization in OAuth2

OpenSTAManager is an open source management software for technical assistance and invoicing. Prior to version 2.10.2, the oauth2.php file in OpenSTAManager is an unauthenticated endpoint $skippermissions = true. It loads a record from the zzoauth2 table using the attacker-controlled GET parameter...

CVE-2026-33544: Concurrent Execution using Shared Resource with Improper Synchronization

Tinyauth is an authentication and authorization server. Prior to version 5.0.5, all three OAuth service implementations GenericOAuthService, GithubOAuthService, GoogleOAuthService store PKCE verifiers and access tokens as mutable struct fields on singleton instances shared across all concurrent...

Tinyauth race condition vulnerability

Tinyauth is an authentication and authorization server developed by Stavros personally. Versions of Tinyauth prior to 5.0.5 had a race condition vulnerability; this issue stemmed from race conditions in the OAuth service, which could lead to session hijacking...

Devolutions Server < 2025.3.18 / 2026.1.x < 2026.1.12 Multiple Vulnerabilities (DEVO-2026-0010)

The version of Devolutions Server installed on the remote host is prior to 2025.3.18 or 2026.1.x prior to 2026.1.12. It is, therefore, affected by multiple vulnerabilities, including: - Improper authentication in the OAuth login functionality allows a remote attacker with valid credentials to...

Zabbix 7.4.x < 7.4.3 Arbitrary File Read (ZBX-27282)

The version of Zabbix Server installed on the remote host is affected by a vulnerability. An authenticated Zabbix Super Admin can exploit the oauth.authorize action to read arbitrary files from the webserver leading to potential confidentiality loss. Note that Nessus has not tested for this issue...