The vulnerability of PostgreSQL PgBouncer’s connection pool software, related to the assignment of the null pointer, allows a hacker to trigger a service failure.

The vulnerability of the PostgreSQL PgBouncer connection pool software relates to the assignment of the null pointer. Exploiting this vulnerability could allow a malicious actor to cause service failures...

RCE (Remote Code Execution) at c3p0 dependency in Crucible Server

This High severity RCE Remote Code Execution vulnerability was introduced in version 4.9.0 of Crucible Server. This RCE Remote Code Execution vulnerability, with a CVSS Score of 8.9 and a CVSS Vector of code:java CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H code allows an...

curl: ignoring 'options' when doing connection reuse

libcurl contains a significant logic flaw in its connection pool matching mechanism. When a transfer specifies a required authentication policy—such as a specific SASL mechanism e.g., ;AUTH=GSSAPI or a restricted set of SSH authentication types CURLOPTSSHAUTHTYPES—libcurl fails to verify these...

curl: Use-After-Free race condition in url_move_hostname() via shared connection pool

Summary: In lib/url.c, urlconnreuseadjust calls urlmovehostname which frees conn-host.rawalloc and conn-host.encalloc via Curlsafefree and Curlfreeidnconvertedhostname after Curlcpoolfind has already released the connection pool lock. A second thread doing a concurrent pool lookup still holds tha...

SUSE 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...

Deserialization of Untrusted Data

Overview com.mchange:c3p0 is a mature, highly concurrent JDBC Connection pooling library, with support for caching and reuse of PreparedStatements. Affected versions of this package are vulnerable to Deserialization of Untrusted Data via the userOverridesAsString property of...

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...

GHSA-5476-XC4J-RQCV c3p0 vulnerable to Remote Code Execution via unsafe deserialization of userOverridesAsString property

Impact c3p0 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 v0.12.0, that property was...

Hibernate Reactive Vulnerable to DoS via Connection Pool Exhaustion

A flaw was found in Hibernate Reactive. When an HTTP endpoint is exposed to perform database operations, a remote client can prematurely close the HTTP connection. This action may lead to leaking connections from the database connection pool, potentially causing a Denial of Service DoS by...

GHSA-FRPP-8PWQ-HJRX Hibernate Reactive Vulnerable to DoS via Connection Pool Exhaustion

A flaw was found in Hibernate Reactive. When an HTTP endpoint is exposed to perform database operations, a remote client can prematurely close the HTTP connection. This action may lead to leaking connections from the database connection pool, potentially causing a Denial of Service DoS by...

EUVD-2025-206338

A flaw was found in Hibernate Reactive. When an HTTP endpoint is exposed to perform database operations, a remote client can prematurely close the HTTP connection. This action may lead to leaking connections from the database connection pool, potentially causing a Denial of Service DoS by...

CVE-2026-23842

ChatterBot is a machine learning, conversational dialog engine for creating chat bots. ChatterBot versions up to 1.2.10 are vulnerable to a denial-of-service condition caused by improper database session and connection pool management. Concurrent invocations of the getresponse method can exhaust...

CVE-2026-23842 ChatterBot has Denial of Service via Database Connection Pool Exhaustion

ChatterBot is a machine learning, conversational dialog engine for creating chat bots. ChatterBot versions up to 1.2.10 are vulnerable to a denial-of-service condition caused by improper database session and connection pool management. Concurrent invocations of the getresponse method can exhaust...

CVE-2026-23842

ChatterBot is a machine learning, conversational dialog engine for creating chat bots. ChatterBot versions up to 1.2.10 are vulnerable to a denial-of-service condition caused by improper database session and connection pool management. Concurrent invocations of the getresponse method can exhaust...

CVE-2026-23842 ChatterBot has Denial of Service via Database Connection Pool Exhaustion

ChatterBot is a machine learning, conversational dialog engine for creating chat bots. ChatterBot versions up to 1.2.10 are vulnerable to a denial-of-service condition caused by improper database session and connection pool management. Concurrent invocations of the getresponse method can exhaust...

CVE-2026-23842

Summary of CVE-2026-23842 (ChatterBot): Up to version 1.2.10, ChatterBot is vulnerable to denial-of-service caused by improper database session and SQLAlchemy connection pool management. Concurrent calls to get_response() can exhaust the SQLAlchemy QueuePool, leaving the service unresponsive and ...

PT-2026-3483

Name of the Vulnerable Software and Affected Versions ChatterBot versions up to 1.2.10 ChatterBot version 1.2.11 Description ChatterBot, a machine learning conversational dialog engine, is susceptible to a denial-of-service condition. This occurs due to improper management of database sessions an...

SUSE CVE-2025-62409

Envoy is a cloud-native, open source edge and service proxy. Prior to 1.36.1, 1.35.5, 1.34.9, and 1.33.10, large requests and responses can potentially trigger TCP connection pool crashes due to flow control management in Envoy. It will happen when the connection is closing but upstream data is...

BIT-ENVOY-2025-62409 Envoy allows large requests and responses to cause TCP connection pool crash

Envoy is a cloud-native, open source edge and service proxy. Prior to 1.36.1, 1.35.5, 1.34.9, and 1.33.10, large requests and responses can potentially trigger TCP connection pool crashes due to flow control management in Envoy. It will happen when the connection is closing but upstream data is...

NULL Pointer Dereference

Overview Affected versions of this package are vulnerable to NULL Pointer Dereference in the flow control management process while overriding onAboveWriteBufferHighWatermark and onBelowWriteBufferLowWatermark callbacks. An attacker can cause a crash of the TCP connection pool by sending large...