CVE-2026-67184: NULL Pointer Dereference in GeneralSandman TinyWeb
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.
AI Analysis
Technical Summary
CVE-2026-67184 is a null pointer dereference vulnerability in GeneralSandman's TinyWeb version 0.0.8. The vulnerability arises because the HttpParser::execute() function fails to allocate the Url object when parsing an invalid HTTP version string, leaving the url pointer NULL. Subsequently, the buildResponse() function dereferences this NULL pointer without verifying the validity of the request, causing a SIGSEGV that crashes the worker process. Repeated exploitation can crash all worker processes, resulting in a denial of service by taking the server offline until manual intervention.
Potential Impact
Exploitation allows unauthenticated remote attackers to cause a denial of service by crashing worker processes, potentially taking the entire TinyWeb server offline until it is manually restarted. There is no indication of code execution or data compromise, but service availability is severely impacted.
Mitigation Recommendations
No official patch or remediation is currently available for this vulnerability. Administrators should monitor for malformed HTTP requests with invalid version strings and consider implementing network-level protections or rate limiting to reduce exposure. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
CVE-2026-67184: NULL Pointer Dereference in GeneralSandman TinyWeb
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 v4.0
Score 8.7high
Affected software
GeneralSandman
TinyWeb
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-67184 is a null pointer dereference vulnerability in GeneralSandman's TinyWeb version 0.0.8. The vulnerability arises because the HttpParser::execute() function fails to allocate the Url object when parsing an invalid HTTP version string, leaving the url pointer NULL. Subsequently, the buildResponse() function dereferences this NULL pointer without verifying the validity of the request, causing a SIGSEGV that crashes the worker process. Repeated exploitation can crash all worker processes, resulting in a denial of service by taking the server offline until manual intervention.
Potential Impact
Exploitation allows unauthenticated remote attackers to cause a denial of service by crashing worker processes, potentially taking the entire TinyWeb server offline until it is manually restarted. There is no indication of code execution or data compromise, but service availability is severely impacted.
Mitigation Recommendations
No official patch or remediation is currently available for this vulnerability. Administrators should monitor for malformed HTTP requests with invalid version strings and consider implementing network-level protections or rate limiting to reduce exposure. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-07-28T16:06:49.773Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a68de689c2644c7f8e9c234
Added to database: 07/28/2026, 16:52:56 UTC
Last enriched: 07/29/2026, 16:08:00 UTC
Last updated: 09/10/2026, 23:07:51 UTC
Views: 87
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