Vulnerability Description
TinyWeb through 0.0.8 contains a null pointer dereference vulnerability that allows unauthenticated remote attackers to crash worker processes by sending a malformed HTTP request line with an invalid version string. The HttpParser::execute() function fails to allocate the Url object when version parsing fails, leaving the url pointer NULL, and buildResponse() subsequently dereferences this NULL pointer without checking the valid_requ flag, producing a SIGSEGV that terminates the worker process and, when repeated across all workers, takes the server permanently offline until manually restarted.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/theopaid/Unauthenticated-NULL-Pointer-Dereference-Crashes-the
- https://www.vulncheck.com/advisories/tinyweb-null-pointer-dereference-dos-via-ma
FAQ
What is CVE-2026-67184?
CVE-2026-67184 is a vulnerability with a CVSS score of 7.5 (HIGH). TinyWeb through 0.0.8 contains a null pointer dereference vulnerability that allows unauthenticated remote attackers to crash worker processes by sending a malformed HTTP request line with an invalid ...
How severe is CVE-2026-67184?
CVE-2026-67184 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-2026-67184?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.