Vulnerability Description
The HTTP server in Mongoose before 7.10 accepts requests containing negative Content-Length headers. By sending a single attack payload over TCP, an attacker can cause an infinite loop in which the server continuously reparses that payload, and does not respond to any other requests.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cesanta | Mongoose | < 7.10 |
Related Weaknesses (CWE)
References
- https://blog.narfindustries.com/blog/narf-discovers-critical-vulnerabilities-in-
- https://github.com/cesanta/mongoose/commit/4663090a8fb036146dfe77718cff612b0101cPatch
- https://github.com/cesanta/mongoose/compare/7.9...7.10Release Notes
- https://github.com/cesanta/mongoose/pull/2197Patch
- https://blog.narfindustries.com/blog/narf-discovers-critical-vulnerabilities-in-
- https://github.com/cesanta/mongoose/commit/4663090a8fb036146dfe77718cff612b0101cPatch
- https://github.com/cesanta/mongoose/compare/7.9...7.10Release Notes
- https://github.com/cesanta/mongoose/pull/2197Patch
- https://security.netapp.com/advisory/ntap-20250228-0001/
FAQ
What is CVE-2023-34188?
CVE-2023-34188 is a vulnerability with a CVSS score of 7.5 (HIGH). The HTTP server in Mongoose before 7.10 accepts requests containing negative Content-Length headers. By sending a single attack payload over TCP, an attacker can cause an infinite loop in which the se...
How severe is CVE-2023-34188?
CVE-2023-34188 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-34188?
Check the references section above for vendor advisories and patch information. Affected products include: Cesanta Mongoose.