Improper Input Validation Affecting python-tornado package, versions <2.1.0-3


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
1.37% (70th percentile)

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  • Snyk IDSNYK-ECHOLATEST-PYTHONTORNADO-17982292
  • published15 Jul 2026
  • disclosed23 May 2012

Introduced: 23 May 2012

CVE-2012-2374  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Echo:latest python-tornado to version 2.1.0-3 or higher.

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 Echo. See How to fix? for Echo:latest relevant fixed versions and status.

CRLF injection vulnerability in the tornado.web.RequestHandler.set_header function in Tornado before 2.2.1 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via crafted input.

CVSS Base Scores

version 3.1