Damien Arrachequesne

20 exploits Active since Jan 2021
CVE-2026-69185 WRITEUP HIGH WRITEUP
Socket.IO: Zero-attachment Memory Exhaustion
Socket.IO enables bidirectional and low-latency communication for every platform. Prior to 4.2.7, 3.4.5, and 3.3.6, a specially crafted Socket.IO packet can make the server wait for a large number of binary attachments and buffer them, which can be exploited to make the server run out of memory. This vulnerability is fixed in 4.2.7, 3.4.5, and 3.3.6.
CVSS 7.5
CVE-2026-69185 WRITEUP HIGH WRITEUP
Socket.IO: Zero-attachment Memory Exhaustion
Socket.IO enables bidirectional and low-latency communication for every platform. Prior to 4.2.7, 3.4.5, and 3.3.6, a specially crafted Socket.IO packet can make the server wait for a large number of binary attachments and buffer them, which can be exploited to make the server run out of memory. This vulnerability is fixed in 4.2.7, 3.4.5, and 3.3.6.
CVSS 7.5
CVE-2026-69185 WRITEUP HIGH WRITEUP
Socket.IO: Zero-attachment Memory Exhaustion
Socket.IO enables bidirectional and low-latency communication for every platform. Prior to 4.2.7, 3.4.5, and 3.3.6, a specially crafted Socket.IO packet can make the server wait for a large number of binary attachments and buffer them, which can be exploited to make the server run out of memory. This vulnerability is fixed in 4.2.7, 3.4.5, and 3.3.6.
CVSS 7.5
CVE-2026-59724 WRITEUP HIGH WRITEUP
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 TypeError and denial of service. This issue is fixed in version 6.6.7.
CVSS 7.5
CVE-2026-59725 WRITEUP HIGH WRITEUP
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 attacker to exhaust server-side connections and sockets. This issue is fixed in version 6.6.7.
CVSS 7.5
CVE-2022-21676 WRITEUP HIGH WRITEUP
Engine.IO 4.0.0-4.1.1, 5.0.0-5.2.0, 6.0.0-6.1.0 - Denial of Service via Crafted HTTP Request
Engine.IO is the implementation of transport-based cross-browser/cross-device bi-directional communication layer for Socket.IO. A specially crafted HTTP request can trigger an uncaught exception on the Engine.IO server, thus killing the Node.js process. This impacts all the users of the `engine.io` package starting from version `4.0.0`, including those who uses depending packages like `socket.io`. Versions prior to `4.0.0` are not impacted. A fix has been released for each major branch, namely `4.1.2` for the `4.x.x` branch, `5.2.1` for the `5.x.x` branch, and `6.1.1` for the `6.x.x` branch. There is no known workaround except upgrading to a safe version.
CVSS 7.5
CVE-2022-21676 WRITEUP HIGH WRITEUP
Engine.IO 4.0.0-4.1.1, 5.0.0-5.2.0, 6.0.0-6.1.0 - Denial of Service via Crafted HTTP Request
Engine.IO is the implementation of transport-based cross-browser/cross-device bi-directional communication layer for Socket.IO. A specially crafted HTTP request can trigger an uncaught exception on the Engine.IO server, thus killing the Node.js process. This impacts all the users of the `engine.io` package starting from version `4.0.0`, including those who uses depending packages like `socket.io`. Versions prior to `4.0.0` are not impacted. A fix has been released for each major branch, namely `4.1.2` for the `4.x.x` branch, `5.2.1` for the `5.x.x` branch, and `6.1.1` for the `6.x.x` branch. There is no known workaround except upgrading to a safe version.
CVSS 7.5
CVE-2022-25867 WRITEUP HIGH WRITEUP
socket.io-client_java < 2.0.1 - NULL Pointer Dereference via Invalid Payload Format
The package io.socket:socket.io-client before 2.0.1 are vulnerable to NULL Pointer Dereference when parsing a packet with with invalid payload format.
CVSS 7.5
CVE-2023-32695 WRITEUP HIGH WRITEUP
socket.io-parser 3.4.0-3.4.2 and 4.0.4-4.2.2 - Denial of Service via Crafted Socket.IO Packet
socket.io parser is a socket.io encoder and decoder written in JavaScript complying with version 5 of socket.io-protocol. A specially crafted Socket.IO packet can trigger an uncaught exception on the Socket.IO server, thus killing the Node.js process. A patch has been released in version 4.2.3.
CVSS 7.3
CVE-2024-38355 WRITEUP HIGH WRITEUP
Socket.IO < 2.5.1 and 3.0.0-4.6.2 - Denial of Service via Crafted Packet
Socket.IO is an open source, real-time, bidirectional, event-based, communication framework. A specially crafted Socket.IO packet can trigger an uncaught exception on the Socket.IO server, thus killing the Node.js process. This issue is fixed by commit `15af22fc22` which has been included in `[email protected]` (released in May 2023). The fix was backported in the 2.x branch as well with commit `d30630ba10`. Users are advised to upgrade. Users unable to upgrade may attach a listener for the "error" event to catch these errors.
CVSS 7.3
CVE-2024-38355 WRITEUP HIGH WRITEUP
Socket.IO < 2.5.1 and 3.0.0-4.6.2 - Denial of Service via Crafted Packet
Socket.IO is an open source, real-time, bidirectional, event-based, communication framework. A specially crafted Socket.IO packet can trigger an uncaught exception on the Socket.IO server, thus killing the Node.js process. This issue is fixed by commit `15af22fc22` which has been included in `[email protected]` (released in May 2023). The fix was backported in the 2.x branch as well with commit `d30630ba10`. Users are advised to upgrade. Users unable to upgrade may attach a listener for the "error" event to catch these errors.
CVSS 7.3
CVE-2026-33151 WRITEUP HIGH WRITEUP
socket.io allows an unbounded number of binary attachments
Socket.IO is an open source, real-time, bidirectional, event-based, communication framework. Prior to versions 3.3.5, 3.4.4, and 4.2.6, a specially crafted Socket.IO packet can make the server wait for a large number of binary attachments and buffer them, which can be exploited to make the server run out of memory. This issue has been patched in versions 3.3.5, 3.4.4, and 4.2.6.
CVSS 7.5
CVE-2026-33151 WRITEUP HIGH WRITEUP
socket.io allows an unbounded number of binary attachments
Socket.IO is an open source, real-time, bidirectional, event-based, communication framework. Prior to versions 3.3.5, 3.4.4, and 4.2.6, a specially crafted Socket.IO packet can make the server wait for a large number of binary attachments and buffer them, which can be exploited to make the server run out of memory. This issue has been patched in versions 3.3.5, 3.4.4, and 4.2.6.
CVSS 7.5
CVE-2026-33151 WRITEUP HIGH WRITEUP
socket.io allows an unbounded number of binary attachments
Socket.IO is an open source, real-time, bidirectional, event-based, communication framework. Prior to versions 3.3.5, 3.4.4, and 4.2.6, a specially crafted Socket.IO packet can make the server wait for a large number of binary attachments and buffer them, which can be exploited to make the server run out of memory. This issue has been patched in versions 3.3.5, 3.4.4, and 4.2.6.
CVSS 7.5
CVE-2020-36048 WRITEUP HIGH WRITEUP
Engine.IO < 4.0.0 - Denial of Service via Long Polling Transport
Engine.IO before 4.0.0 allows attackers to cause a denial of service (resource consumption) via a POST request to the long polling transport.
CVSS 7.5
CVE-2022-21676 WRITEUP HIGH WRITEUP
Engine.IO 4.0.0-4.1.1, 5.0.0-5.2.0, 6.0.0-6.1.0 - Denial of Service via Crafted HTTP Request
Engine.IO is the implementation of transport-based cross-browser/cross-device bi-directional communication layer for Socket.IO. A specially crafted HTTP request can trigger an uncaught exception on the Engine.IO server, thus killing the Node.js process. This impacts all the users of the `engine.io` package starting from version `4.0.0`, including those who uses depending packages like `socket.io`. Versions prior to `4.0.0` are not impacted. A fix has been released for each major branch, namely `4.1.2` for the `4.x.x` branch, `5.2.1` for the `5.x.x` branch, and `6.1.1` for the `6.x.x` branch. There is no known workaround except upgrading to a safe version.
CVSS 7.5
CVE-2022-25867 WRITEUP HIGH WRITEUP
socket.io-client_java < 2.0.1 - NULL Pointer Dereference via Invalid Payload Format
The package io.socket:socket.io-client before 2.0.1 are vulnerable to NULL Pointer Dereference when parsing a packet with with invalid payload format.
CVSS 7.5
CVE-2022-41940 WRITEUP HIGH WRITEUP
engine.io < 3.6.1 - Denial of Service via Crafted HTTP Request
Engine.IO is the implementation of transport-based cross-browser/cross-device bi-directional communication layer for Socket.IO. A specially crafted HTTP request can trigger an uncaught exception on the Engine.IO server, thus killing the Node.js process. This impacts all the users of the engine.io package, including those who uses depending packages like socket.io. There is no known workaround except upgrading to a safe version. There are patches for this issue released in versions 3.6.1 and 6.2.1.
CVSS 7.1
CVE-2023-31125 WRITEUP MEDIUM WRITEUP
Engine.IO 5.1.0-6.4.1 - Denial of Service via Crafted HTTP Request
Engine.IO is the implementation of transport-based cross-browser/cross-device bi-directional communication layer for Socket.IO. An uncaught exception vulnerability was introduced in version 5.1.0 and included in version 4.1.0 of the `socket.io` parent package. Older versions are not impacted. A specially crafted HTTP request can trigger an uncaught exception on the Engine.IO server, thus killing the Node.js process. This impacts all the users of the `engine.io` package, including those who use depending packages like `socket.io`. This issue was fixed in version 6.4.2 of Engine.IO. There is no known workaround except upgrading to a safe version.
CVSS 6.5
CVE-2023-32695 WRITEUP HIGH WRITEUP
socket.io-parser 3.4.0-3.4.2 and 4.0.4-4.2.2 - Denial of Service via Crafted Socket.IO Packet
socket.io parser is a socket.io encoder and decoder written in JavaScript complying with version 5 of socket.io-protocol. A specially crafted Socket.IO packet can trigger an uncaught exception on the Socket.IO server, thus killing the Node.js process. A patch has been released in version 4.2.3.
CVSS 7.3