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openSUSE-SU-2026:22103-1

Опубликовано: 14 окт. 2026
Источник: suse-cvrf

Описание

Security update for python-oauthlib

This update for python-oauthlib fixes the following issues:

  • CVE-2026-49264: Oauthlib : Unsafe JSONP callback injection in RevocationEndpoint allows arbitrary JavaScript response generation (bsc#1283526).
  • CVE-2026-49265: Oauthlib: Timing Attack Vulnerability in PKCE code_verifier Comparison (bsc#1283527).

Список пакетов

openSUSE Leap 16.0
python313-oauthlib-3.2.2-160000.3.1

Ссылки

Описание

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.

Затронутые продукты
openSUSE Leap 16.0:python313-oauthlib-3.2.2-160000.3.1
Ссылки

Описание

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 using ordinary string equality in code_challenge_method_plain and code_challenge_method_s256. Because the comparison can return after a length difference or the first mismatching character, repeated token endpoint measurements can reveal common-prefix timing information that could potentially allow recovery of the code_verifier, unauthorized access-token acquisition, and account takeover. Practical exploitation requires an intercepted, single-use authorization code and enough measurements to overcome real-world network noise; the local timing benchmark does not establish practical remote account takeover, so the weakness remains a defense-in-depth concern. This issue is fixed in version 4.0.0.

Затронутые продукты
openSUSE Leap 16.0:python313-oauthlib-3.2.2-160000.3.1
Ссылки