CVE-2026-103262
HIGHCVSS 7.5Description
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.
Timeline
Published:October 1st, 2026 11:17 AM
Last modified:October 6th, 2026 1:16 AM
CVSS Scoring
CVSS v3: 7.5 (HIGH)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses (CWE)
References & Reports
Advisories, patches, and third-party reports
- 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-curlasynchttpclient
- https://github.com/tornadoweb/tornado/security/advisories/GHSA-chx6-46f5-w4vp
Source: NIST NVD · Data may lag official sources by up to one minute