CVE-2026-59724 - Socket.IO: Engine.IO WebTransport SID DoS
CVE ID :CVE-2026-59724
Published : July 8, 2026, 4:16 p.m. | 29 minutes ago
Description :Socket.IO enables bidirectional and low-latency communication for every platform. From 6.5.0 before 6.6.7, Engine.IO servers with WebTransport enabled can resolve a crafted session ID such as __proto__ through an inherited property of the clients object during WebTransport upgrade handling, causing a TypeError and denial of service. This issue is fixed in version 6.6.7.
Severity: 7.5 | HIGH
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Published : July 8, 2026, 4:16 p.m. | 29 minutes ago
Description :Socket.IO enables bidirectional and low-latency communication for every platform. From 6.5.0 before 6.6.7, Engine.IO servers with WebTransport enabled can resolve a crafted session ID such as __proto__ through an inherited property of the clients object during WebTransport upgrade handling, causing a TypeError and denial of service. This issue is fixed in version 6.6.7.
Severity: 7.5 | HIGH
Visit the link for more details, such as CVSS details, affected products, timeline, and more...