CVE-2024-38355Unhandled 'error' event in socket.io
- 7.3HighCVSS base score
- 0.81%Exploitation in 30 daysEPSS · top 43% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Socket.IO is an open source, real-time, bidirectional, event-based, communication framework. A specially crafted Socket.IO packet can trigger an uncaught exception on the Socket.IO server, thus killing the Node.js process. This issue is fixed by commit `15af22fc22` which has been included in `[email protected]` (released in May 2023). The fix was backported in the 2.x branch as well with commit `d30630ba10`. Users are advised to upgrade. Users unable to upgrade may attach a listener for the "error" event to catch these errors.
Timeline
ID reserved
By GitHub_M
- 5 days later
· 5 days later
Published
- 3 months later
· 3 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 · Deferred | 3.1 | High7.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |
- EPSS (exploitation in 30 days)
- 0.81% · top 43% of all CVEs (14 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.
Affected products
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- npmsocket.ioGHSA-25hc-qcg6-38wj (opens in a new tab)
References
References4
- https://github.com/socketio/socket.io/security/advisories/GHSA-25hc-qcg6-38wj (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/socketio/socket.io/commit/15af22fc22bc6030fcead322c106f07640336115 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/socketio/socket.io/commit/d30630ba10562bf987f4d2b42440fc41a828119c (opens in a new tab)x_refsource_MISCx_transferred
- https://www.vicarius.io/vsociety/posts/unhandled-exception-in-socketio-cve-2024-38355 (opens in a new tab)
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)
- EUVD EUVD-2024-1878 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-25hc-qcg6-38wj (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2024-38355)Record last updated .