Allocation of Resources Without Limits or Throttling Affecting py3.13-tornado package, versions <6.5.9-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.47% (39th percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-PY313TORNADO-20818242
  • published11 Oct 2026
  • disclosed1 Oct 2026

Introduced: 1 Oct 2026

NewCVE-2026-103261  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade Minimos:latest py3.13-tornado to version 6.5.9-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream py3.13-tornado package and not the py3.13-tornado package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1