CVE-2026-67184: high-severity vulnerability in GeneralSandman TinyWeb
TinyWeb 0.0.8 Null Pointer Dereference DoS via Malformed HTTP Request
Published
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41Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 8.7epss 0.6%
from disclosure to weaponsame day
Published on NVDJul 28
1st PoCJul 26
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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Affected products
GeneralSandman · TinyWebpublic PoCs found — 2
githubgithub.com/theopaid/CVE-2026-67184-Unauthenticated-NULL-Pointer-Dereference-Crashes-the-Server-TinyWeb-★ 1cve_referencegithub.com/theopaid/Unauthenticated-NULL-Pointer-Dereference-Crashes-the-Server-TinyWeb-unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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