CVE-2022-36087

OAuthLib vulnerable DoS when attacker provides malicious IPV6 URI

Published Sep 9, 2022 CVSS 3.1 · 5.7 Medium EPSS 1.8% KEV · Not listed
Description
OAuthLib is an implementation of the OAuth request-signing logic for Python 3.6+. In OAuthLib versions 3.1.1 until 3.2.1, an attacker providing malicious redirect uri can cause denial of service. An attacker can also leverage usage of `uri_validate` functions depending where it is used. OAuthLib applications using OAuth2.0 provider support or use directly `uri_validate` are affected by this issue. Version 3.2.1 contains a patch. There are no known workarounds.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2022-0170 OAuthLib is an implementation of the OAuth request-signing logic for Python 3.6+. In OAuthLib versions 3.1.1 until 3.2.1, an attacker providing malicious redirect uri can cause denial of service. An attacker can also leverage usage of `uri_validate` functions depending where it is used. OAuthLib applications using OAuth2.0 provider support or use directly `uri_validate` are affected by this issue. Version 3.2.1 contains a patch. There are no known workarounds.
Github GHSA Github GHSA GHSA-3pgj-pg6c-r5p7 OAuthLib vulnerable to DoS when attacker provides malicious IPV6 URI
Ubuntu USN Ubuntu USN USN-5632-1 OAuthLib vulnerability
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Apr 22, 2025, 5:22 PM
Reserved
Jul 15, 2022, 12:00 AM
Status
Modified
Published
Sep 9, 2022, 9:15 PM
Modified
Jun 17, 2026, 4:52 AM
Severity
Moderate
Public date
Sep 9, 2022, 12:00 AM