CVE-2026-63380

A flaw was found in Libevent, an event notification library. This vulnerability allows a local attacker to trigger a null pointer dereference during specific error handling within the evwsnewsession function. By inducing an allocation or locking failure, an attacker can cause the application to...

CVE-2026-63380 Libevent: Null Pointer Dereference in `evws_new_session`

Libevent is an event notification library. Prior to 2.2.2-alpha, libevent can dereference invalid list pointers in ws.c when evwsnewsession enters its error path after evhttpstartws succeeds but buffereventenablelocking fails. evwsconnectionfree sees a non-null httpserver and unconditionally call...

CVE-2026-63380 Libevent: Null Pointer Dereference in `evws_new_session`

Libevent is an event notification library. Prior to 2.2.2-alpha, libevent can dereference invalid list pointers in ws.c when evwsnewsession enters its error path after evhttpstartws succeeds but buffereventenablelocking fails. evwsconnectionfree sees a non-null httpserver and unconditionally call...