{"id":"CVE-2022-36087","summary":"OAuthLib vulnerable DoS when attacker provides malicious IPV6 URI","details":"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.","aliases":["GHSA-3pgj-pg6c-r5p7","PYSEC-2022-269"],"modified":"2026-02-24T08:21:04.222976Z","published":"2022-09-09T00:00:00Z","related":["ALSA-2023:2161","openSUSE-SU-2024:12339-1","openSUSE-SU-2025:15100-1"],"database_specific":{"cwe_ids":["CWE-20"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/36xxx/CVE-2022-36087.json","cna_assigner":"GitHub_M"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/36xxx/CVE-2022-36087.json"},{"type":"WEB","url":"https://github.com/oauthlib/oauthlib/blob/2b8a44855a51ad5a5b0c348a08c2564a2e197ea2/oauthlib/uri_validate.py"},{"type":"WEB","url":"https://github.com/oauthlib/oauthlib/blob/d4bafd9f1d0eba3766e933b1ac598cbbf37b8914/oauthlib/oauth2/rfc6749/grant_types/base.py#L232"},{"type":"FIX","url":"https://github.com/oauthlib/oauthlib/commit/2e40b412c844ecc4673c3fa3f72181f228bdbacd"},{"type":"WEB","url":"https://github.com/oauthlib/oauthlib/releases/tag/v3.2.1"},{"type":"ADVISORY","url":"https://github.com/oauthlib/oauthlib/security/advisories/GHSA-3pgj-pg6c-r5p7"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LXOPIA6M57CFQPUT6HHSNXCTV6QA3UDI/"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NBCQJR3ZF7FVNTJYRVPVSQEQRAYZIUHU/"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QRYLYHE5HWF6R2CRLJFUK4PILR47WXOE/"},{"type":"ADVISORY","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X2CQZM5CKOUM4GW2GTAPQEQFPITQ6F7S/"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-36087"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/oauthlib/oauthlib","events":[{"introduced":"c6037ce5b36145de22df45abe0e96abfa95873ae"},{"fixed":"88bb1562930a9bd9368bf26120655794d90d9585"}]}],"versions":["v3.1.1","v3.2.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-36087.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H"}]}