CVE-2026-63384

Libevent is an event notification library. Prior to 2.1.13 and 2.2.2-alpha, libevent has an incorrect integer conversion in eventtagging.c when evtagunmarshalheader uses evtagdecodeint to decode an attacker-controlled uint32 payload length and returns it as a signed int. Values above INTMAX becom...

CVE-2026-63383

In libevent prior to 2.1.13 and 2.2.2-alpha, decode_tag_internal() in event_tagging.c requests at most five bytes via evbuffer_pullup but iterates over the full logical buffer length. A fragmented evbuffer holding a six-byte malformed tag can advance past the pullup window, causing an out-of-boun...