CVE-2022-36087
OAuthLib vulnerable DoS when attacker provides malicious IPV6 URI
- State
- Published
- Severity
- 5.7 Medium
- Published
- Sep 9, 2022
- Updated
- Apr 22, 2025
- Reserved
- Jul 15, 2022
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.7 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H | GitHub_M |
Weaknesses
- CWE-20 Improper Input Validation
Affected Products
| Product | Versions |
|---|---|
oauthliboauthlib |
|
References
- https://github.com/oauthlib/oauthlib/security/advisories/GHSA-3pgj-pg6c-r5p7
- https://github.com/oauthlib/oauthlib/commit/2e40b412c844ecc4673c3fa3f72181f228bdbacd
- 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/releases/tag/v3.2.1
- FEDORA-2022-5a74a5eea7vendor-advisory
- FEDORA-2023-da094276a2vendor-advisory
- FEDORA-2023-49ded4c9a5vendor-advisory
- FEDORA-2023-5ab7049a59vendor-advisory
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