CVE-2026-27153 Discourse doesn't prevent moderators from exporting user Chat DMs

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, moderators could export user Chat DMs via the CSV export endpoint by exploiting an overly permissive allowlist in canexportentity?. The method allowed moderators to export any entity not explicit...

CVE-2026-27153

Discourse (open source discussion platform) is affected prior to versions 2025.12.2, 2026.1.1, and 2026.2.0. The issue arises from an overly permissive allowlist in can_export_entity?, letting moderators export any entity not explicitly blocked via the CSV export endpoint to access user Chat DMs....

CVE-2026-27966

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to version 1.8.0, the CSV Agent node in Langflow hardcodes allowdangerouscode=True, which automatically exposes LangChain’s Python REPL tool pythonreplast. As a result, an attacker can execute arbitrary Python an...

CVE-2026-27966 Langflow has Remote Code Execution in CSV Agent

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to version 1.8.0, the CSV Agent node in Langflow hardcodes allowdangerouscode=True, which automatically exposes LangChain’s Python REPL tool pythonreplast. As a result, an attacker can execute arbitrary Python an...

CVE-2026-27966

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to version 1.8.0, the CSV Agent node in Langflow hardcodes "allowdangerouscode=True", which automatically exposes LangChain’s Python REPL tool "pythonreplast". As a result, an attacker can execute arbitrary Pytho...

CVE-2026-27966

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to version 1.8.0, the CSV Agent node in Langflow hardcodes allowdangerouscode=True, which automatically exposes LangChain’s Python REPL tool pythonreplast. As a result, an attacker can execute arbitrary Python an...

CVE-2026-27966 Langflow has Remote Code Execution in CSV Agent

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to version 1.8.0, the CSV Agent node in Langflow hardcodes allowdangerouscode=True, which automatically exposes LangChain’s Python REPL tool pythonreplast. As a result, an attacker can execute arbitrary Python an...

CVE-2026-27966

Langflow before version 1.8.0 exposes a remote code execution risk through the CSV Agent node by hardcoding allow_dangerous_code=True, which enables Python REPL access (python_repl_ast) via prompt injection. This allows an attacker to execute arbitrary Python/OS commands on the server. The issue ...

CVE-2026-27830

c3p0, a JDBC Connection pooling library, is vulnerable to attack via maliciously crafted Java-serialized objects and javax.naming.Reference instances. Several c3p0 ConnectionPoolDataSource implementations have a property called userOverridesAsString which conceptually represents a Map. Prior to...

DEBIAN-CVE-2026-27830

c3p0, a JDBC Connection pooling library, is vulnerable to attack via maliciously crafted Java-serialized objects and javax.naming.Reference instances. Several c3p0 ConnectionPoolDataSource implementations have a property called userOverridesAsString which conceptually represents a Map. Prior to...

CVE-2026-27830 c3p0 vulnerable to Remote Code Execution via unsafe deserialization of userOverridesAsString property

c3p0, a JDBC Connection pooling library, is vulnerable to attack via maliciously crafted Java-serialized objects and javax.naming.Reference instances. Several c3p0 ConnectionPoolDataSource implementations have a property called userOverridesAsString which conceptually represents a Map. Prior to...

CVE-2026-27830 c3p0 vulnerable to Remote Code Execution via unsafe deserialization of userOverridesAsString property

c3p0, a JDBC Connection pooling library, is vulnerable to attack via maliciously crafted Java-serialized objects and javax.naming.Reference instances. Several c3p0 ConnectionPoolDataSource implementations have a property called userOverridesAsString which conceptually represents a Map. Prior to...

CVE-2026-27830

c3p0, a JDBC Connection pooling library, is vulnerable to attack via maliciously crafted Java-serialized objects and javax.naming.Reference instances. Several c3p0 ConnectionPoolDataSource implementations have a property called userOverridesAsString which conceptually represents a Map. Prior to...

CVE-2026-27830 c3p0 vulnerable to Remote Code Execution via unsafe deserialization of userOverridesAsString property

c3p0, a JDBC Connection pooling library, is vulnerable to attack via maliciously crafted Java-serialized objects and javax.naming.Reference instances. Several c3p0 ConnectionPoolDataSource implementations have a property called userOverridesAsString which conceptually represents a Map. Prior to...

CVE-2026-27830

c3p0, a JDBC Connection pooling library, is vulnerable to attack via maliciously crafted Java-serialized objects and javax.naming.Reference instances. Several c3p0 ConnectionPoolDataSource implementations have a property called userOverridesAsString which conceptually represents a Map. Prior to...

CVE-2026-27830

CVE-2026-27830 affects the c3p0 JDBC connection pool. Before 0.12.0, the property userOverridesAsString was stored as a hex-encoded serialized object, enabling an attacker to reset it and trigger deserialization that could load code from a remote factoryClassLocation via embedded JNDI references....

CVE-2026-27153: Incorrect Authorization

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, moderators could export user Chat DMs via the CSV export endpoint by exploiting an overly permissive allowlist in canexportentity?. The method allowed moderators to export any entity not explicit...

PT-2026-22193

Name of the Vulnerable Software and Affected Versions Discourse versions prior to 2025.12.2 Discourse versions prior to 2026.1.1 Discourse versions prior to 2026.2.0 Description Discourse is an open source discussion platform. Prior to specific versions, moderators could export user Chat Direct...

CVE-2026-27830

c3p0, a JDBC Connection pooling library, is vulnerable to attack via maliciously crafted Java-serialized objects and javax.naming.Reference instances. Several c3p0 ConnectionPoolDataSource implementations have a property called userOverridesAsString which conceptually represents a Map. Prior to...

Discourse security vulnerabilities

Discourse is an open-source community discussion platform developed by Discourse. This platform includes features such as communities, email communication, and chat rooms. Versions of Discourse before 2025.12.2, 2026.1.1, and 2026.2.0 have security vulnerabilities. These vulnerabilities stem from...