GHSA-CWC9-CP4J-MCVV libp2p: CPU DoS via oversized IHAVE and IWANT control message arrays

Summary gossipsub processes IHAVE and IWANT control messages by iterating every received message ID synchronously before doing anything with the results. There is no cap on how many IDs a single frame may contain. The default LP frame limit is 4MB, which fits roughly 180,000 message IDs. Iteratin...

EUVD-2026-42409

libp2p: CPU DoS via oversized IHAVE and IWANT control message arrays...

CVE-2017-16115

The timespan module is vulnerable to regular expression denial of service. Given 50k characters of untrusted user input it will block the event loop for around 10 seconds...

Regular Expression Denial of Service

Overview Affected versions of marked are vulnerable to a regular expression denial of service. The amplification in this vulnerability is significant, with 1,000 characters resulting in the event loop being blocked for around 6 seconds. Recommendation Update to version 0.3.9 or later. References ...