CLSA-2026-1784856203 TuxCare security update for engine.io (16 CVEs)

TuxCare rebuilt engine.io to address 16 CVEs. Fixed in 1.8.3-tuxcare.1...

socket.io: engine.io: Socket.IO: Denial of Service via invalid binary POST requests

A flaw was found in Socket.IO, specifically within the Engine.IO protocol v4 polling transport. An unauthenticated attacker can exploit this vulnerability by sending invalid binary POST requests with a Content-Type of application/octet-stream. This improper handling of requests prevents the HTTP...

EUVD-2026-42313

Socket.IO: Engine.IO Polling Transport Connection Exhaustion...

SUSE SLED15 / SLES15 Security Update : python-python-engineio (SUSE-SU-2026:3085-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:3085-1 advisory. - CVE-2026-48802: remote user can cause the creation of unnecessary background threads in the server through t...

MAL-2026-10474 Malicious code in @dervix/engine.io (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 118dd8f5224b1dcccddf25d74c6c9fe3543b444173ea293dafa28154e82689d5 The package was found to contain malicious code or consuming dependency that contains malicious code Source: ghsa-malware...

Malicious code in @dervix/engine.io (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 118dd8f5224b1dcccddf25d74c6c9fe3543b444173ea293dafa28154e82689d5 The package was found to contain malicious code or consuming dependency that contains malicious code Source: ghsa-malware...

Malicious code in @gleamkit/engine.io (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 008464ca4d7ba15b4b8c6d3a979586c61bd527aef3a209571d28c0ba912403ae The package was found to contain malicious code or consuming dependency that contains malicious code Source: ghsa-malware...

socket.io: engine.io: Socket.IO: Denial of Service via invalid binary POST requests

A flaw was found in Socket.IO, specifically within the Engine.IO protocol v4 polling transport. An unauthenticated attacker can exploit this vulnerability by sending invalid binary POST requests with a Content-Type of application/octet-stream. This improper handling of requests prevents the HTTP...

Improper Resource Shutdown or Release

Overview engine.io is a realtime engine behind Socket.IO. It provides the foundation of a bidirectional connection between client and server Affected versions of this package are vulnerable to Improper Resource Shutdown or Release through the polling request handler in Polling transport processin...

CVE-2026-59725

Socket.IO enables bidirectional and low-latency communication for every platform. From 4.1.0 before 6.6.7, Engine.IO protocol v4 polling transport does not properly close the HTTP response for invalid binary POST requests with Content-Type: application/octet-stream, allowing an unauthenticated...

CVE-2026-59724

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...

CVE-2026-59725 Socket.IO: Engine.IO Polling Transport Connection Exhaustion

Socket.IO enables bidirectional and low-latency communication for every platform. From 4.1.0 before 6.6.7, Engine.IO protocol v4 polling transport does not properly close the HTTP response for invalid binary POST requests with Content-Type: application/octet-stream, allowing an unauthenticated...

CVE-2026-59725

CVE-2026-59725 affects Socket.IO’s Engine.IO polling transport (versions 4.1.0–6.6.6). The root cause is that invalid binary POST requests with Content-Type: application/octet-stream are not properly closing the HTTP response, enabling unauthenticated attackers to exhaust server-side connections ...

CVE-2026-59725 Socket.IO: Engine.IO Polling Transport Connection Exhaustion

Socket.IO enables bidirectional and low-latency communication for every platform. From 4.1.0 before 6.6.7, Engine.IO protocol v4 polling transport does not properly close the HTTP response for invalid binary POST requests with Content-Type: application/octet-stream, allowing an unauthenticated...

EUVD-2026-42312

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...

CVE-2026-59724

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...

CVE-2026-59724

Socket.IO’s Engine.IO component is affected in versions 6.5.0–6.6.6 when WebTransport is enabled. During a WebTransport upgrade, processing a crafted session ID such as proto on an inherited property of the clients object can trigger a TypeError, leading to a denial of service. The issue has been...

CVE-2026-59724 Socket.IO: Engine.IO WebTransport SID DoS

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...

engine.io: Specially crafted HTTP request can trigger an uncaught exception

A flaw was found in engine.io. The Socket.IO Engine.IO is vulnerable to a denial of service caused by an uncaught exception flaw. By sending a specially-crafted HTTP request, a remote, authenticated attacker can cause the Node.js process to crash, resulting in a denial of service...

Engine.IO 安全漏洞

Engine.IO is Engine.IO open source implementation of a transport-based cross-browser/cross-device bi-directional communication layer. A security vulnerability exists in Engine.IO versions 5.1.0 through 6.4.1, which stems from a specially crafted HTTP request that can trigger an uncaught exception...