Allocation of Resources Without Limits or Throttling Affecting python-tornado package, versions <0:6.5.8-0.el10_2.1


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.42% (35th percentile)

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  • Snyk IDSNYK-RHEL10-PYTHONTORNADO-20714293
  • published10 Oct 2026
  • disclosed15 Sept 2026

Introduced: 15 Sep 2026

CVE-2026-91990  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade RHEL:10 python-tornado to version 0:6.5.8-0.el10_2.1 or higher.
This issue was patched in RHSA-2026:67147.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python-tornado package and not the python-tornado package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

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 Base Scores

version 3.1