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MEDIUM

CVE-2022-36087

CVSS v3

6.5

MEDIUM

EPSS Score

1.7 %

exploit probability, as of 2026-10-17

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • oauthlibPyPIfrom 3.1.1 · fixed in 3.2.1
  • fence-virtdAlmaLinux:9all versions · fixed in 4.10.0-43.el9and 54 other packages

Vendor advisories

  • CVE-2022-36087 Red Hat Product Security187 products fixed · 10 known affected

    python-oauthlib: DoS when attacker provides malicious IPV6 URI

    ansible-tower.src as a component of Red Hat Ansible Automation Platform 1.2 · ansible-automation-platform-24/ansible-builder-rhel8 as a component of Red Hat Ansible Automation Platform 2 · ansible-automation-platform-24/ee-29-rhel8 as a component of Red Hat Ansible Automation Platform 2

  • RHSA-2023:2161 Red Hat Product Security187 products fixed

    Red Hat Security Advisory: fence-agents security and bug fix update

Full record on NVD

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.

Technical details

Published
2022-09-09

Frequently asked questions

What is CVE-2022-36087?

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.

Is CVE-2022-36087 actively exploited?

Active exploitation of CVE-2022-36087 has not been confirmed. Its EPSS score was 1.7% on 2026-10-17, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-36087?

CVE-2022-36087 has a CVSS v3 base score of 6.5 (MEDIUM severity).

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