Search Results (3 CVEs found)

CVE Vendors Products Updated CVSS v3.1
CVE-2026-62389 2 Websockets, Websockets Project 2 Ws, Websockets 2026-07-28 7.5 High
ws before 8.21.1 contains a memory exhaustion vulnerability in lib/receiver.js where the fragment guard only triggers when fragment count reaches maxFragments, allowing attackers to exhaust memory by sending incomplete fragmented WebSocket messages. Attackers can send a text frame with FIN=0 followed by continuation frames without completing the sequence, causing each fragment to be stored as a separate Buffer object with significant overhead, enabling denial of service through heap exhaustion.
CVE-2021-33880 2 Oracle, Websockets Project 5 Communications Cloud Native Core Policy, Communications Cloud Native Core Security Edge Protection Proxy, Communications Cloud Native Core Service Communication Proxy and 2 more 2024-11-21 5.9 Medium
The aaugustin websockets library before 9.1 for Python has an Observable Timing Discrepancy on servers when HTTP Basic Authentication is enabled with basic_auth_protocol_factory(credentials=...). An attacker may be able to guess a password via a timing attack.
CVE-2018-1000518 1 Websockets Project 1 Websockets 2024-11-21 7.5 High
aaugustin websockets version 4 contains a CWE-409: Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in Servers and clients, unless configured with compression=None that can result in Denial of Service by memory exhaustion. This attack appear to be exploitable via Sending a specially crafted frame on an established connection. This vulnerability appears to have been fixed in 5.