CVE-2026-67183
Memory-leak DoS in TinyWeb <=0.0.8 via ordinary HTTP requests
Is CVE-2026-67183 being exploited?
Not confirmed. CVE-2026-67183 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.37% probability of exploitation in the next 30 days.
How severe is CVE-2026-67183?
CVE-2026-67183 is rated High with a CVSS score of 8.7. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-67183?
Not known from our data. No patch reference has been recorded for CVE-2026-67183, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-67183 affect?
CVE-2026-67183 affects TinyWeb <= 0.0.8, Applications using TinyWeb's HttpParser. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-67183?
Upgrade to a patched TinyWeb release or apply vendor fix; add rate-limiting/WAF
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated remote memory exhaustion causing worker processes to grow and be killed, resulting in denial of service.
Patch when possible
- affected>= e48f15d38d2bebeec9cabcfdde81931b10a1963b and <= a381da252fe8e873c8aff22703040426cc9b2ae0
- affected0.0.8
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.