Cross-site Scripting (XSS) Affecting python311-oauthlib package, versions <3.2.2-150400.12.10.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.23% (15th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-SLES157-PYTHON311OAUTHLIB-21428137
  • published22 Oct 2026
  • disclosed21 Oct 2026

Introduced: 21 Oct 2026

NewCVE-2026-49264  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

Upgrade SLES:15.7 python311-oauthlib to version 3.2.2-150400.12.10.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python311-oauthlib package and not the python311-oauthlib package as distributed by SLES. See How to fix? for SLES:15.7 relevant fixed versions and status.

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 error response bodies when enable_jsonp=True. The callback can come from the query string or request body and is used without restricting it to a legal JavaScript function name. A browser application that loads the revocation response as trusted JSONP and permits attacker influence over callback can therefore execute attacker-controlled JavaScript in the including application's origin, with access to its DOM and script-accessible data. The feature is disabled by default, so only deployments that explicitly enable JSONP are affected. This issue is fixed in version 4.0.0.

CVSS Base Scores

version 3.1