CVE-2026-67184

High

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.

SeverityHigh
CVSS7.5
Exploit probability—
ProductTinyWeb
PublishedJul 28, 2026
First seenJul 28, 2026

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
GeneralSandman TinyWebe48f15d38d2bebeec9cabcfdde81931b10a1963b ≤ v ≤ a381da252fe8e873c8aff22703040426cc9b2ae0, 0.0.8—

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