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29 vulnerabilities by Socket
CVE-2026-90651 (GCVE-0-2026-90651)
Vulnerability from cvelistv5 – Published: 2026-09-12 23:55 – Updated: 2026-09-12 23:55
VLAI
EPSS
VEX
Summary
Socket Firewall (socketdev/socket-registry-firewall) in registry mode before 2.0.0 does not verify upstream TLS certificates by default. When the api_ssl_verify and upstream_ssl_verify configuration keys are omitted from socket.yml, the generated configuration sets SOCKET_API_SSL_VERIFY='false' and UPSTREAM_SSL_VERIFY='false', and the OpenResty/Lua HTTP client used for outbound requests accepts any certificate, including self-signed and otherwise untrusted certificates, without validating the chain. An attacker positioned to intercept traffic between Socket Firewall and the Socket API or an upstream package registry can present a crafted certificate and modify responses in transit, including substituting malicious package content or altering the allow/block decisions the firewall enforces. Setting api_ssl_verify: true and upstream_ssl_verify: true enables verification; however, in versions before 1.1.334, the generated nginx configuration did not emit lua_ssl_trusted_certificate, and thus verification could not be used successfully without manually patching the generated configuration. Version 2.0.0 changes the default for both settings to true.
Severity
8.1 (High)
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Socket | Socket Firewall |
Affected:
0 , < 2.0.0
(semver)
|
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"value": "\u003cspan style=\"background-color: rgb(252, 252, 251)\"\u003eUpgrade to Socket Firewall 2.0.0 or later, where api_ssl_verify and upstream_ssl_verify default to true. Deployments that terminate TLS on an internal proxy or use a private CA must supply that CA via api_ssl_ca_cert / upstream_ssl_ca_cert, or explicitly disable verification for those connections.\u003c/span\u003e\u003cbr\u003e"
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}
],
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CVE-2026-59725 (GCVE-0-2026-59725)
Vulnerability from cvelistv5 – Published: 2026-07-08 15:37 – Updated: 2026-07-08 17:00
VLAI
EPSS
VEX
Title
Socket.IO: Engine.IO Polling Transport Connection Exhaustion
Summary
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.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-08 16:50 UTC
CWE
- CWE-404 - Improper Resource Shutdown or Release
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/socketio/socket.io/security/ad… | x_refsource_CONFIRM |
| https://github.com/socketio/socket.io/commit/fc11… | x_refsource_MISC |
| https://github.com/socketio/socket.io/releases/ta… | x_refsource_MISC |
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CVE-2026-59724 (GCVE-0-2026-59724)
Vulnerability from cvelistv5 – Published: 2026-07-08 15:35 – Updated: 2026-07-08 19:41
VLAI
EPSS
VEX
Title
Socket.IO: Engine.IO WebTransport SID DoS
Summary
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)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-08 17:58 UTC
CWE
- CWE-20 - Improper Input Validation
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/socketio/socket.io/security/ad… | x_refsource_CONFIRM |
| https://github.com/socketio/socket.io/commit/1fa1… | x_refsource_MISC |
| https://github.com/socketio/socket.io/releases/ta… | x_refsource_MISC |
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CVE-2026-33151 (GCVE-0-2026-33151)
Vulnerability from cvelistv5 – Published: 2026-03-20 20:13 – Updated: 2026-03-23 16:50
VLAI
EPSS
VEX
Title
socket.io allows an unbounded number of binary attachments
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-23 16:50 UTC
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/socketio/socket.io/security/ad… | x_refsource_CONFIRM |
| https://github.com/socketio/socket.io/commit/719f… | x_refsource_MISC |
| https://github.com/socketio/socket.io/commit/9d39… | x_refsource_MISC |
| https://github.com/socketio/socket.io/commit/b257… | x_refsource_MISC |
Impacted products
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CVE-2023-32695 (GCVE-0-2023-32695)
Vulnerability from cvelistv5 – Published: 2023-05-27 15:44 – Updated: 2025-01-13 21:03
VLAI
EPSS
VEX
Title
Insufficient validation when decoding a Socket.IO packet
Summary
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.
Severity
7.3 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-01-13 21:03 UTC
CWE
- CWE-20 - Improper Input Validation
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/socketio/socket.io-parser/secu… | x_refsource_CONFIRM |
| https://github.com/socketio/socket.io-parser/comm… | x_refsource_MISC |
| https://github.com/socketio/socket.io-parser/comm… | x_refsource_MISC |
| https://github.com/socketio/socket.io-parser/rele… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| socketio | socket.io-parser |
Affected:
>= 4.0.0, < 4.2.3
Affected: >= 3.4.0, < 3.4.3 |
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CVE-2023-31125 (GCVE-0-2023-31125)
Vulnerability from cvelistv5 – Published: 2023-05-08 20:21 – Updated: 2025-02-13 16:49
VLAI
EPSS
VEX
Title
Uncaught exception in engine.io
Summary
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.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-01-29 14:56 UTC
CWE
- CWE-248 - Uncaught Exception
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/socketio/engine.io/security/ad… | x_refsource_CONFIRM |
| https://github.com/socketio/engine.io/commit/fc48… | x_refsource_MISC |
| https://github.com/socketio/engine.io/releases/ta… | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2023062… |
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CVE-2022-41940 (GCVE-0-2022-41940)
Vulnerability from cvelistv5 – Published: 2022-11-22 00:00 – Updated: 2025-04-22 16:02
VLAI
EPSS
VEX
Title
Uncaught exception in engine.io
Summary
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.
Severity
7.1 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-22 15:41 UTC
CWE
- CWE-248 - Uncaught Exception
Assigner
References
Impacted products
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CVE-2022-2421 (GCVE-0-2022-2421)
Vulnerability from cvelistv5 – Published: 2022-10-25 00:00 – Updated: 2025-03-11 13:40
VLAI
EPSS
VEX
Title
Socket.io - Improper type validation in attachment parsing
Summary
Due to improper type validation in attachment parsing the Socket.io js library, it is possible to overwrite the _placeholder object which allows an attacker to place references to functions at arbitrary places in the resulting query object.
Severity
10 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-20 14:40 UTC
CWE
- CWE-89 - SQL Injection
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://csirt.divd.nl/CVE-2022-2421 | third-party-advisory |
| https://csirt.divd.nl/DIVD-2022-00045 | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Socket.io | Socket.io-Parser |
Affected:
4.x , < 4.2.1
(custom)
|
Date Public
2022-10-24 22:00
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CVE-2022-25867 (GCVE-0-2022-25867)
Vulnerability from cvelistv5 – Published: 2022-08-02 13:28 – Updated: 2024-09-16 22:25
VLAI
EPSS
VEX
Title
NULL Pointer Dereference
Summary
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.
Severity
CWE
- NULL Pointer Dereference
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://security.snyk.io/vuln/SNYK-JAVA-IOSOCKET-… | x_refsource_MISC |
| https://github.com/socketio/socket.io-client-java… | x_refsource_MISC |
| https://github.com/socketio/socket.io-client-java… | x_refsource_MISC |
| https://github.com/socketio/socket.io-client-java… | x_refsource_MISC |
| https://github.com/socketio/socket.io-client-java… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | io.socket:socket.io-client |
Affected:
unspecified , < 2.0.1
(custom)
|
Date Public
2022-08-02 00:00
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CVE-2022-21676 (GCVE-0-2022-21676)
Vulnerability from cvelistv5 – Published: 2022-01-12 18:25 – Updated: 2025-04-23 19:13
VLAI
EPSS
VEX
Title
Uncaught Exception in engine.io
Summary
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.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-23 15:58 UTC
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://github.com/socketio/engine.io/security/ad… | x_refsource_CONFIRM |
| https://github.com/socketio/engine.io/commit/66f8… | x_refsource_MISC |
| https://github.com/socketio/engine.io/commit/a708… | x_refsource_MISC |
| https://github.com/socketio/engine.io/commit/c0e1… | x_refsource_MISC |
| https://github.com/socketio/engine.io/releases/ta… | x_refsource_MISC |
| https://github.com/socketio/engine.io/releases/ta… | x_refsource_MISC |
| https://github.com/socketio/engine.io/releases/ta… | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2022020… | x_refsource_CONFIRM |
Impacted products
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CVE-2020-28481 (GCVE-0-2020-28481)
Vulnerability from cvelistv5 – Published: 2021-01-19 14:45 – Updated: 2024-09-16 20:11
VLAI
EPSS
VEX
Title
Insecure Defaults
Summary
The package socket.io before 2.4.0 are vulnerable to Insecure Defaults due to CORS Misconfiguration. All domains are whitelisted by default.
Severity
CWE
- Insecure Defaults
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://snyk.io/vuln/SNYK-JS-SOCKETIO-1024859 | x_refsource_MISC |
| https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1056357 | x_refsource_MISC |
| https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-1056358 | x_refsource_MISC |
| https://github.com/socketio/socket.io/issues/3671 | x_refsource_MISC |
Impacted products
Date Public
2021-01-19 00:00
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CVE-2020-36048 (GCVE-0-2020-36048)
Vulnerability from cvelistv5 – Published: 2021-01-07 23:24 – Updated: 2024-08-04 17:16
VLAI
EPSS
VEX
Summary
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.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/socketio/engine.io/commit/734f… | x_refsource_MISC |
| https://blog.caller.xyz/socketio-engineio-dos/ | x_refsource_MISC |
| https://github.com/bcaller/kill-engine-io | x_refsource_MISC |
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CVE-2020-36049 (GCVE-0-2020-36049)
Vulnerability from cvelistv5 – Published: 2021-01-07 23:24 – Updated: 2024-08-04 17:16
VLAI
EPSS
VEX
Summary
socket.io-parser before 3.4.1 allows attackers to cause a denial of service (memory consumption) via a large packet because a concatenation approach is used.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://blog.caller.xyz/socketio-engineio-dos/ | x_refsource_MISC |
| https://github.com/bcaller/kill-engine-io | x_refsource_MISC |
| https://github.com/socketio/socket.io-parser/comm… | x_refsource_MISC |
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CVE-2017-16031 (GCVE-0-2017-16031)
Vulnerability from cvelistv5 – Published: 2018-06-04 19:00 – Updated: 2024-09-16 21:07
VLAI
EPSS
VEX
Summary
Socket.io is a realtime application framework that provides communication via websockets. Because socket.io 0.9.6 and earlier depends on `Math.random()` to create socket IDs, the IDs are predictable. An attacker is able to guess the socket ID and gain access to socket.io servers, potentially obtaining sensitive information.
Severity
No CVSS data available.
CWE
- Account Hijacking
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/socketio/socket.io/commit/67b4… | x_refsource_MISC |
| https://github.com/socketio/socket.io/issues/856 | x_refsource_MISC |
| https://github.com/socketio/socket.io/pull/857 | x_refsource_MISC |
| https://nodesecurity.io/advisories/321 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| HackerOne | socket.io node module |
Affected:
<=0.9.6
|
Date Public
2018-04-26 00:00
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CVE-2016-10536 (GCVE-0-2016-10536)
Vulnerability from cvelistv5 – Published: 2018-05-31 20:00 – Updated: 2024-09-17 01:46
VLAI
EPSS
VEX
Summary
engine.io-client is the client for engine.io, the implementation of a transport-based cross-browser/cross-device bi-directional communication layer for Socket.IO. The vulnerability is related to the way that node.js handles the `rejectUnauthorized` setting. If the value is something that evaluates to false, certificate verification will be disabled. This is problematic as engine.io-client 1.6.8 and earlier passes in an object for settings that includes the rejectUnauthorized property, whether it has been set or not. If the value has not been explicitly changed, it will be passed in as `null`, resulting in certificate verification being turned off.
Severity
No CVSS data available.
CWE
- CWE-300 - Man-in-the-Middle (CWE-300)
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.cigital.com/blog/node-js-socket-io/ | x_refsource_MISC |
| https://github.com/socketio/engine.io-client/comm… | x_refsource_MISC |
| https://nodesecurity.io/advisories/99 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| HackerOne | engine.io-client node module |
Affected:
<= 1.6.8
|
Date Public
2018-04-26 00:00
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CVE-2026-59725 (GCVE-0-2026-59725)
Vulnerability from nvd – Published: 2026-07-08 15:37 – Updated: 2026-07-08 17:00
VLAI
EPSS
VEX
Title
Socket.IO: Engine.IO Polling Transport Connection Exhaustion
Summary
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.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-08 16:50 UTC
CWE
- CWE-404 - Improper Resource Shutdown or Release
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/socketio/socket.io/security/ad… | x_refsource_CONFIRM |
| https://github.com/socketio/socket.io/commit/fc11… | x_refsource_MISC |
| https://github.com/socketio/socket.io/releases/ta… | x_refsource_MISC |
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CVE-2026-59724 (GCVE-0-2026-59724)
Vulnerability from nvd – Published: 2026-07-08 15:35 – Updated: 2026-07-08 19:41
VLAI
EPSS
VEX
Title
Socket.IO: Engine.IO WebTransport SID DoS
Summary
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)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-08 17:58 UTC
CWE
- CWE-20 - Improper Input Validation
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/socketio/socket.io/security/ad… | x_refsource_CONFIRM |
| https://github.com/socketio/socket.io/commit/1fa1… | x_refsource_MISC |
| https://github.com/socketio/socket.io/releases/ta… | x_refsource_MISC |
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CVE-2026-33151 (GCVE-0-2026-33151)
Vulnerability from nvd – Published: 2026-03-20 20:13 – Updated: 2026-03-23 16:50
VLAI
EPSS
VEX
Title
socket.io allows an unbounded number of binary attachments
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-23 16:50 UTC
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/socketio/socket.io/security/ad… | x_refsource_CONFIRM |
| https://github.com/socketio/socket.io/commit/719f… | x_refsource_MISC |
| https://github.com/socketio/socket.io/commit/9d39… | x_refsource_MISC |
| https://github.com/socketio/socket.io/commit/b257… | x_refsource_MISC |
Impacted products
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CVE-2023-32695 (GCVE-0-2023-32695)
Vulnerability from nvd – Published: 2023-05-27 15:44 – Updated: 2025-01-13 21:03
VLAI
EPSS
VEX
Title
Insufficient validation when decoding a Socket.IO packet
Summary
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.
Severity
7.3 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-01-13 21:03 UTC
CWE
- CWE-20 - Improper Input Validation
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/socketio/socket.io-parser/secu… | x_refsource_CONFIRM |
| https://github.com/socketio/socket.io-parser/comm… | x_refsource_MISC |
| https://github.com/socketio/socket.io-parser/comm… | x_refsource_MISC |
| https://github.com/socketio/socket.io-parser/rele… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| socketio | socket.io-parser |
Affected:
>= 4.0.0, < 4.2.3
Affected: >= 3.4.0, < 3.4.3 |
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CVE-2023-31125 (GCVE-0-2023-31125)
Vulnerability from nvd – Published: 2023-05-08 20:21 – Updated: 2025-02-13 16:49
VLAI
EPSS
VEX
Title
Uncaught exception in engine.io
Summary
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.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-01-29 14:56 UTC
CWE
- CWE-248 - Uncaught Exception
Assigner
References
4 references
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|---|---|
| https://github.com/socketio/engine.io/security/ad… | x_refsource_CONFIRM |
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| https://github.com/socketio/engine.io/releases/ta… | x_refsource_MISC |
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CVE-2022-41940 (GCVE-0-2022-41940)
Vulnerability from nvd – Published: 2022-11-22 00:00 – Updated: 2025-04-22 16:02
VLAI
EPSS
VEX
Title
Uncaught exception in engine.io
Summary
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.
Severity
7.1 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-22 15:41 UTC
CWE
- CWE-248 - Uncaught Exception
Assigner
References
Impacted products
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CVE-2022-2421 (GCVE-0-2022-2421)
Vulnerability from nvd – Published: 2022-10-25 00:00 – Updated: 2025-03-11 13:40
VLAI
EPSS
VEX
Title
Socket.io - Improper type validation in attachment parsing
Summary
Due to improper type validation in attachment parsing the Socket.io js library, it is possible to overwrite the _placeholder object which allows an attacker to place references to functions at arbitrary places in the resulting query object.
Severity
10 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-20 14:40 UTC
CWE
- CWE-89 - SQL Injection
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://csirt.divd.nl/CVE-2022-2421 | third-party-advisory |
| https://csirt.divd.nl/DIVD-2022-00045 | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Socket.io | Socket.io-Parser |
Affected:
4.x , < 4.2.1
(custom)
|
Date Public
2022-10-24 22:00
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CVE-2022-25867 (GCVE-0-2022-25867)
Vulnerability from nvd – Published: 2022-08-02 13:28 – Updated: 2024-09-16 22:25
VLAI
EPSS
VEX
Title
NULL Pointer Dereference
Summary
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.
Severity
CWE
- NULL Pointer Dereference
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://security.snyk.io/vuln/SNYK-JAVA-IOSOCKET-… | x_refsource_MISC |
| https://github.com/socketio/socket.io-client-java… | x_refsource_MISC |
| https://github.com/socketio/socket.io-client-java… | x_refsource_MISC |
| https://github.com/socketio/socket.io-client-java… | x_refsource_MISC |
| https://github.com/socketio/socket.io-client-java… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | io.socket:socket.io-client |
Affected:
unspecified , < 2.0.1
(custom)
|
Date Public
2022-08-02 00:00
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CVE-2022-21676 (GCVE-0-2022-21676)
Vulnerability from nvd – Published: 2022-01-12 18:25 – Updated: 2025-04-23 19:13
VLAI
EPSS
VEX
Title
Uncaught Exception in engine.io
Summary
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.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-23 15:58 UTC
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://github.com/socketio/engine.io/security/ad… | x_refsource_CONFIRM |
| https://github.com/socketio/engine.io/commit/66f8… | x_refsource_MISC |
| https://github.com/socketio/engine.io/commit/a708… | x_refsource_MISC |
| https://github.com/socketio/engine.io/commit/c0e1… | x_refsource_MISC |
| https://github.com/socketio/engine.io/releases/ta… | x_refsource_MISC |
| https://github.com/socketio/engine.io/releases/ta… | x_refsource_MISC |
| https://github.com/socketio/engine.io/releases/ta… | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2022020… | x_refsource_CONFIRM |
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CVE-2020-28481 (GCVE-0-2020-28481)
Vulnerability from nvd – Published: 2021-01-19 14:45 – Updated: 2024-09-16 20:11
VLAI
EPSS
VEX
Title
Insecure Defaults
Summary
The package socket.io before 2.4.0 are vulnerable to Insecure Defaults due to CORS Misconfiguration. All domains are whitelisted by default.
Severity
CWE
- Insecure Defaults
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://snyk.io/vuln/SNYK-JS-SOCKETIO-1024859 | x_refsource_MISC |
| https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1056357 | x_refsource_MISC |
| https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-1056358 | x_refsource_MISC |
| https://github.com/socketio/socket.io/issues/3671 | x_refsource_MISC |
Impacted products
Date Public
2021-01-19 00:00
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CVE-2020-36048 (GCVE-0-2020-36048)
Vulnerability from nvd – Published: 2021-01-07 23:24 – Updated: 2024-08-04 17:16
VLAI
EPSS
VEX
Summary
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.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/socketio/engine.io/commit/734f… | x_refsource_MISC |
| https://blog.caller.xyz/socketio-engineio-dos/ | x_refsource_MISC |
| https://github.com/bcaller/kill-engine-io | x_refsource_MISC |
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CVE-2020-36049 (GCVE-0-2020-36049)
Vulnerability from nvd – Published: 2021-01-07 23:24 – Updated: 2024-08-04 17:16
VLAI
EPSS
VEX
Summary
socket.io-parser before 3.4.1 allows attackers to cause a denial of service (memory consumption) via a large packet because a concatenation approach is used.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://blog.caller.xyz/socketio-engineio-dos/ | x_refsource_MISC |
| https://github.com/bcaller/kill-engine-io | x_refsource_MISC |
| https://github.com/socketio/socket.io-parser/comm… | x_refsource_MISC |
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CVE-2017-16031 (GCVE-0-2017-16031)
Vulnerability from nvd – Published: 2018-06-04 19:00 – Updated: 2024-09-16 21:07
VLAI
EPSS
VEX
Summary
Socket.io is a realtime application framework that provides communication via websockets. Because socket.io 0.9.6 and earlier depends on `Math.random()` to create socket IDs, the IDs are predictable. An attacker is able to guess the socket ID and gain access to socket.io servers, potentially obtaining sensitive information.
Severity
No CVSS data available.
CWE
- Account Hijacking
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/socketio/socket.io/commit/67b4… | x_refsource_MISC |
| https://github.com/socketio/socket.io/issues/856 | x_refsource_MISC |
| https://github.com/socketio/socket.io/pull/857 | x_refsource_MISC |
| https://nodesecurity.io/advisories/321 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| HackerOne | socket.io node module |
Affected:
<=0.9.6
|
Date Public
2018-04-26 00:00
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CVE-2016-10536 (GCVE-0-2016-10536)
Vulnerability from nvd – Published: 2018-05-31 20:00 – Updated: 2024-09-17 01:46
VLAI
EPSS
VEX
Summary
engine.io-client is the client for engine.io, the implementation of a transport-based cross-browser/cross-device bi-directional communication layer for Socket.IO. The vulnerability is related to the way that node.js handles the `rejectUnauthorized` setting. If the value is something that evaluates to false, certificate verification will be disabled. This is problematic as engine.io-client 1.6.8 and earlier passes in an object for settings that includes the rejectUnauthorized property, whether it has been set or not. If the value has not been explicitly changed, it will be passed in as `null`, resulting in certificate verification being turned off.
Severity
No CVSS data available.
CWE
- CWE-300 - Man-in-the-Middle (CWE-300)
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.cigital.com/blog/node-js-socket-io/ | x_refsource_MISC |
| https://github.com/socketio/engine.io-client/comm… | x_refsource_MISC |
| https://nodesecurity.io/advisories/99 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| HackerOne | engine.io-client node module |
Affected:
<= 1.6.8
|
Date Public
2018-04-26 00:00
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