CVE WatchJul 28, 2026

CVE-2026-67184

TinyWeb through 0.0.8 contains a null pointer dereference vulnerability that allows unauthenticated remote attackers to crash worker process

CVSS

7.5

High

EPSS

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KEV

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Exploit Today

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0-100

Published: Jul 28, 2026 · Last modified: Jul 28, 2026 · CWE-476

EPSS · 30d

Not enough EPSS history yet.

Technical 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.

Official references

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