What’s Vulnerable › Vulnerabilities

CVE-2026-67183: TinyWeb 0.0.8 Memory Leak DoS via HTTP Request Handling

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-28 · updated 2026-10-23
• Weakness: CWE-401

Description

TinyWeb through 0.0.8 contains a memory leak vulnerability that allows unauthenticated attackers to exhaust available memory by sending ordinary well-formed HTTP requests. Each request causes HttpParser::execute() to allocate Url objects, HttpHeaders objects, and HttpHeader instances via raw new expressions that are never freed due to missing destructors and unreachable delete calls, causing worker resident memory to grow monotonically by approximately 20 to 28 kB per request until the worker process is killed.

Affected products

• GeneralSandman TinyWeb: 0.0.8

References

• https://github.com/theopaid/Unauthenticated-Memory-Leak-Leads-To-Memory-Exhaustion-TinyWeb-
• https://www.vulncheck.com/advisories/tinyweb-memory-leak-dos-via-http-request-handling

Get alerted when CVE-2026-67183 or the next vulnerability affects your stack