Web Application Vulnerabilities Runtime SCA Findings
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TornadoWebServer Allocation of Resources Without Limits or Throttling Vulnerability - CVE-2026-103261 - Vulnerability Database
Tornado

TornadoWebServer Allocation of Resources Without Limits or Throttling Vulnerability - CVE-2026-103261

Medium
Reference: CVE-2026-103261
NVD Link: https://nvd.nist.gov/vuln/detail/CVE-2026-103261
Title: TornadoWebServer Allocation of Resources Without Limits or Throttling Vulnerability
Overview:

Tornado before 6.5.9 fails to limit the number of query string fields in HTTPServerRequest.__init__ allowing remote attackers to cause event-loop stalling by sending requests with thousands of query parameters. Attackers can send unauthenticated GET requests with unbounded query-string field counts to degrade response times for all clients sharing the same IOLoop.