CVE-2023-32695
Insufficient validation when decoding a Socket.IO packet
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
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.
Timeline
ID reserved
By GitHub_M
- 16 days later
· 16 days later
Published
- 20 months later
· 20 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | High7.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 1.1% · top 35% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.3.
Weakness
Affected products
- affected >= 4.0.0, < 4.2.3
- affected >= 3.4.0, < 3.4.3
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- npmsocket.io-parserGHSA-cqmj-92xf-r6r9 (opens in a new tab)
References (4)
- https://github.com/socketio/socket.io-parser/security/advisories/GHSA-cqmj-92xf-r6r9 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/socketio/socket.io-parser/commit/2dc3c92622dad113b8676be06f23b1ed46b02ced (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/socketio/socket.io-parser/commit/3b78117bf6ba7e99d7a5cfc1ba54d0477554a7f3 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/socketio/socket.io-parser/releases/tag/4.2.3 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-cqmj-92xf-r6r9 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2023-32695)Record last updated .