{"schema_version":"1.7.2","id":"OESA-2026-4499","modified":"2026-10-22T14:35:51Z","published":"2026-10-22T14:35:51Z","upstream":["CVE-2026-49264"],"summary":"python-oauthlib security update","details":"AuthLib is a framework which implements the logic of OAuth1 or OAuth2  without assuming a specific HTTP request object or web framework. Use  it to graft OAuth client support onto your favorite HTTP library, or  provide support onto your favourite web framework. If you're a  maintainer of such a library, write a thin veneer on top of OAuthLib  and get OAuth support for very little effort.\r\n\r\nSecurity Fix(es):\n\nOAuthLib 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.(CVE-2026-49264)","affected":[{"package":{"ecosystem":"openEuler:24.03-LTS-SP4","name":"python-oauthlib","purl":"pkg:rpm/openEuler/python-oauthlib&distro=openEuler-24.03-LTS-SP4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.2.2-3.oe2403sp4"}]}],"ecosystem_specific":{"noarch":["python-oauthlib-help-3.2.2-3.oe2403sp4.noarch.rpm","python3-oauthlib-3.2.2-3.oe2403sp4.noarch.rpm"],"src":["python-oauthlib-3.2.2-3.oe2403sp4.src.rpm"]}}],"references":[{"type":"ADVISORY","url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4499"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-49264"}],"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"}],"database_specific":{"severity":"Medium"}}