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Servers and applications

CVE-2021-37149

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.

Severity
High 7.5
Published
3 Nov 2021
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
Apache Traffic ServerServers and applications · cpe:a:apache:traffic_server
  • From 8.0.0 up to 8.1.2
  • From 9.0.0 up to 9.1.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-37149
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-37149