CVSS 3.1
6.5 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HCVE-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.
Severity
- EPSS
- 1.7% chance of exploitation in the next 30 days; higher than 76% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-601, CWE-20
- Published
- Modified
- Record from
- the NVD, synced
Affected
- fedoraproject:fedora
- oauthlib_project:oauthlib
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-3pgj-pg6c-r5p7 | PyPI | oauthlib | >=3.1.1 <3.2.2 | 3.2.2 |
| PYSEC-2022-269 | PyPI | oauthlib | >=3.1.1 <3.2.1 | 3.2.1 |
References
- https://github.com/oauthlib/oauthlib/blob/2b8a44855a51ad5a5b0c348a08c2564a2e197ea2/oauthlib/uri_validate.py
- https://github.com/oauthlib/oauthlib/blob/d4bafd9f1d0eba3766e933b1ac598cbbf37b8914/oauthlib/oauth2/rfc6749/grant_types/base.py#L232
- https://github.com/oauthlib/oauthlib/commit/2e40b412c844ecc4673c3fa3f72181f228bdbacd
- https://github.com/oauthlib/oauthlib/releases/tag/v3.2.1
- https://github.com/oauthlib/oauthlib/security/advisories/GHSA-3pgj-pg6c-r5p7