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Vendor

oauthlib

5 known vulnerabilities.

oauthlib at a glance

Last 12 months
4
Critical · all time
0
Exploited · all time
0
Public exploit · all time
1
New vulnerabilities per month · last 12 months
0 3 5 December 2025: 0 vulnerabilities Dec 2025 January 2026: 0 vulnerabilities February 2026: 0 vulnerabilities March 2026: 0 vulnerabilities Mar April 2026: 0 vulnerabilities May 2026: 0 vulnerabilities June 2026: 0 vulnerabilities Jun July 2026: 0 vulnerabilities August 2026: 0 vulnerabilities September 2026: 0 vulnerabilities Sep October 2026: 3 vulnerabilities November 2026: 1 vulnerability
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Products

oauthlib 5
All Critical High Medium Low Exploited only Public exploit

5 results · Feed

  • High 8.5
    CVE-2026-49272

    OAuthLib: Bearer token can be retrieved as long as client knows a valid client ID for device workflow

    OAuthLib is an implementation of the OAuth request-signing logic for Python 3.6+. From 3.3.0 until 4.0.1, OAuthLib's RFC 8628 device workflow does not require DeviceCodeGrant.validate_token_request to check that the device_code parameter is present and valid.…

    oauthlib oauthlib python-oauthlib oauthlib Debian Ubuntu PyPI
  • High 8.4
    CVE-2026-118669 Public exploit

    OAuthLib: Token grants can use attacker-supplied client_id for authorization after authenticating a different client

    OAuthLib is an implementation of the OAuth request-signing logic for Python 3.6+. Prior to 4.0.0, the client_credentials and Resource Owner Password Credentials token grant handlers can authenticate request.client as one confidential client while retaining an…

    oauthlib oauthlib oauthlib python-oauthlib Debian Ubuntu PyPI
  • Medium 6.1
    CVE-2026-49264

    OAuthLib: Unsafe JSONP callback injection in RevocationEndpoint allows arbitrary JavaScript response generation

    OAuthLib is an implementation of the OAuth request-signing logic for Python 3.6+. From 0.6.1 until 4.0.0, OAuthLib's RevocationEndpoint in oauthlib/oauth2/rfc6749/endpoints/revocation.py reflects an unvalidated callback request parameter into success and erro…

    oauthlib oauthlib python-oauthlib oauthlib Debian Ubuntu PyPI
  • Medium 6.8
    CVE-2026-49265

    OAuthLib: Timing Attack Vulnerability in PKCE code_verifier Comparison

    OAuthLib is an implementation of the OAuth request-signing logic for Python 3.6+. From 3.0.0 until 4.0.0, OAuthLib's PKCE checks in oauthlib/oauth2/rfc6749/grant_types/authorization_code.py compare attacker-supplied code_verifier values with stored challenges…

    oauthlib oauthlib oauthlib python-oauthlib Debian Ubuntu PyPI
  • Medium 5.7
    CVE-2022-36087

    OAuthLib vulnerable DoS when attacker provides malicious IPV6 URI

    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…

    oauthlib oauthlib python-oauthlib oauthlib Debian Ubuntu PyPI