CVE-2022-2421

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Source
https://nvd.nist.gov/vuln/detail/CVE-2022-2421
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-2421.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2022-2421
Aliases
Published
2022-10-26T10:15:16.780Z
Modified
2025-11-20T12:03:56.437492Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Git / github.com/socketio/socket.io-parser

Affected ranges

Type
GIT
Repo
https://github.com/socketio/socket.io-parser
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
f3329eb5a46b215a3fdf91b6008c56cf177a4124

Affected versions

2.*

2.0.0
2.1.0
2.1.1
2.1.2
2.1.3
2.1.4
2.1.5
2.2.0
2.2.1
2.2.2
2.2.3
2.2.4
2.2.5
2.2.6
2.3.0
2.3.1
2.3.2

3.*

3.0.0
3.1.0
3.1.1
3.1.2
3.1.3
3.2.0
3.3.0
3.4.0
3.4.1

4.*

4.0.0
4.0.1
4.0.1-rc1
4.0.1-rc2
4.0.1-rc3
4.0.2
4.0.3
4.0.4

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-2421.json"