CVE-2026-91990: falha de alta gravidade em tornadoweb tornado
Tornado before 6.5.8 Memory Amplification DoS via multipart
Publicada em
Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.
21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 8.7epss 0.4%
Tornado before 6.5.8 contains a memory amplification vulnerability in parse_multipart_form_data that splits multipart data before validating the max_parts limit. Attackers can send crafted multipart requests with many parts to create large transient lists, exhausting server memory and causing denial of service.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Produtos afetados
tornadoweb · tornadoCVEs relacionadas — tornadoweb tornado
No mesmo produto, das mais perigosas para as menos.
CVE-2024-52804HIGHTornado has HTTP cookie parsing DoS vulnerabilityEPSS 1.0%CVE-2025-47287HIGHTornado vulnerable to excessive logging caused by malformed multipart form dataEPSS 0.7%CVE-2026-103262HIGHTornado before 6.5.9 Denial of Service via CurlAsyncHTTPClientEPSS 0.6%CVE-2026-49855HIGHtornado AsyncHTTPClient accumulates decompressed chunks without size limit (gzip bomb)EPSS 0.6%CVE-2025-67725HIGHTornado is Vulnerable to Quadratic DoS via Repeated Header CoalescingEPSS 0.6%CVE-2025-67726HIGHTornado is Vulnerable to Quadratic DoS via Crafted Multipart ParametersEPSS 0.5%