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8 vulnerabilities found for socket.io-parser by socket
CVE-2026-33151 (GCVE-0-2026-33151)
Vulnerability from nvd – Published: 2026-03-20 20:13 – Updated: 2026-03-23 16:50
VLAI
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 (v2.0.3)
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
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 (v2.0.3)
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-2022-2421 (GCVE-0-2022-2421)
Vulnerability from nvd – Published: 2022-10-25 00:00 – Updated: 2025-03-11 13:40
VLAI
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 (v2.0.3)
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-2020-36049 (GCVE-0-2020-36049)
Vulnerability from nvd – Published: 2021-01-07 23:24 – Updated: 2024-08-04 17:16
VLAI
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-2026-33151 (GCVE-0-2026-33151)
Vulnerability from cvelistv5 – Published: 2026-03-20 20:13 – Updated: 2026-03-23 16:50
VLAI
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 (v2.0.3)
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
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 (v2.0.3)
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-2022-2421 (GCVE-0-2022-2421)
Vulnerability from cvelistv5 – Published: 2022-10-25 00:00 – Updated: 2025-03-11 13:40
VLAI
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 (v2.0.3)
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-2020-36049 (GCVE-0-2020-36049)
Vulnerability from cvelistv5 – Published: 2021-01-07 23:24 – Updated: 2024-08-04 17:16
VLAI
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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