HIGH 8.7 NVD
CVE-2026-103262
Tornado versions before 6.5.9 contain an unbounded memory accumulation vulnerability in CurlAsyncHTTPClient that allows remote attackers to cause denial of serv
Tornado versions before 6.5.9 contain an unbounded memory accumulation vulnerability in CurlAsyncHTTPClient that allows remote attackers to cause denial of service by sending a compressed response. Attackers can send a gzip-encoded decompression bomb that accumulates in memory without size limits, causing the application process to be killed by out-of-memory conditions.
References
- https://github.com/tornadoweb/tornado/commit/e412435febba4569c552c5c9054f1bf92bd171a9
- https://github.com/tornadoweb/tornado/security/advisories/GHSA-chx6-46f5-w4vp
- https://www.vulncheck.com/advisories/tornado-before-6.5.9-denial-of-service-via-curlasynch
This high severity vulnerability with a CVSS score of 8.7 was published on 2026-10-01 via NVD.
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