Improper Input Validation Affecting trafficserver package, versions <9.1.1+ds-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
2.44% (83rd percentile)

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  • Snyk IDSNYK-ECHOLATEST-TRAFFICSERVER-18001175
  • published17 Jul 2026
  • disclosed3 Nov 2021

Introduced: 3 Nov 2021

CVE-2021-37147  (opens in a new tab)
CWE-20  (opens in a new tab)
CWE-444  (opens in a new tab)

How to fix?

Upgrade Echo:latest trafficserver to version 9.1.1+ds-1 or higher.

NVD Description

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

Improper input validation vulnerability in header parsing of Apache Traffic Server allows an attacker to smuggle requests. This issue affects Apache Traffic Server 8.0.0 to 8.1.2 and 9.0.0 to 9.1.0.

CVSS Base Scores

version 3.1