CVE-2022-29167

hawk: REDoS in hawk.utils.parseHost() when parsing Host header

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Severity

Moderate

Red Hat Product Security

7.5

CVSS 3.1

Review impact separately from score.

Published · May 6, 2022

Updated · August 9, 2026

Description

A regular expression denial of service (ReDoS) was found in Hawk in its header parsing functionality. The issue arises from inadequate input validation in the Hawk.utils.parseHost() function when processing untrusted input with regular expressions. This flaw allows an attacker to send a specially crafted HTTP header to initiate a ReDoS attack.

Statement

This flaw is out of support scope and will not be addressed for the dotnet-5.0 product. Please see https://access.redhat.com/support/policy/updates/net-core for more information about dotnet support scope.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-770 · Allocation of Resources Without Limits or Throttling