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.
CVE-2023-32695
This high-severity CVE scores 7.3 under NVD CVSS v3. EPSS exploit probability: 1.1%, top 39% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.3
- EG Score
- 7.3(medium)
- EG Risk
- 48(Track)EG Risk 48/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity73% × 45%Exploitation1% × 40%Automatability100% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 61.0%
- KEV
- Not listed
Published
May 27, 2023
Last Modified
November 21, 2024
References (8)
- security-advisories@githubhttps://github.com/socketio/socket.io-parser/commit/2dc3c92622dad113b8676be06f23b1ed46b02ced
- security-advisories@githubhttps://github.com/socketio/socket.io-parser/commit/3b78117bf6ba7e99d7a5cfc1ba54d0477554a7f3
- security-advisories@githubhttps://github.com/socketio/socket.io-parser/releases/tag/4.2.3
- security-advisories@githubhttps://github.com/socketio/socket.io-parser/security/advisories/GHSA-cqmj-92xf-r6r9
- af854a3a-2127-422b-91ae-364da2661108https://github.com/socketio/socket.io-parser/commit/2dc3c92622dad113b8676be06f23b1ed46b02ced
- af854a3a-2127-422b-91ae-364da2661108https://github.com/socketio/socket.io-parser/commit/3b78117bf6ba7e99d7a5cfc1ba54d0477554a7f3
- af854a3a-2127-422b-91ae-364da2661108https://github.com/socketio/socket.io-parser/releases/tag/4.2.3
- af854a3a-2127-422b-91ae-364da2661108https://github.com/socketio/socket.io-parser/security/advisories/GHSA-cqmj-92xf-r6r9
Affected Packages
(1 across 1 ecosystem)
npm(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| socket.io-parser | — | 3.3.4 | — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 13× in last 7d / 53× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 112 total refreshes for this CVE.
- 2026-07-23 02:23 UTCEG score recompute
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Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2023-32695?
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Is CVE-2023-32695 actively exploited?
What is the CVSS score of CVE-2023-32695?
How do I remediate CVE-2023-32695?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-32695
Is Your Infrastructure Affected by CVE-2023-32695?
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