CVSS 4.0
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се по мрежата, без особени условия, само при определена конфигурация или състояние на системата, без вход и без действие от потребителя.
- Експлоатация: няма данни за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
Improper Authentication vulnerability in team-alembic AshAuthentication allows an attacker to be signed in as another user by linking an OAuth2 identity to an account that is not theirs. AshAuthentication.Strategy.OAuth2.UserResolver.resolve/3 matches an existing account using the register action's upsert_identity keys, then gates linking the incoming provider identity to it on email_trusted?/2, which reads only the provider's email_verified boolean and never compares the provider's email value with the matched account's email. That gate assumes the account was matched by its email field, so under any other upsert_identity it is vacuous and an attacker presenting their own verified email is attached to, and issued a session for, an account matched on some other attribute. The same unguarded gate applies in OAuth2.SignInPreparation on the registration_enabled? false path, where the account is matched by the sign-in action's read filter instead. The upsert also rewrites the matched account's email to the attacker's address, so later account recovery reaches the attacker rather than the owner. This issue affects ash_authentication: from 4.14.0 before 4.15.0 and from 5.0.0-rc.10 before 5.0.0-rc.14.
Засегнати продукти
- team-alembic ash_authentication: 4.14.0 преди 4.15.0; 5.0.0-rc.10 преди 5.0.0-rc.14
- team-alembic ash_authentication: от 64530644f9b37ebb76ca14aeb83a77597a0034b7 нататък; от 42edcd8ebb13fafbb168f12591d7518ce0611fec нататък
Вид слабост
История
- 17 септември 2026 Публикувано
Други уязвимости в team-alembic ash_authentication
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-88952
- https://nvd.nist.gov/vuln/detail/CVE-2026-88952
- https://github.com/team-alembic/ash_authentication/security/advisories/GHSA-wc6x-276q-jrf9
- https://cna.erlef.org/cves/CVE-2026-88952.html
- https://osv.dev/vulnerability/EEF-CVE-2026-88952
- https://github.com/team-alembic/ash_authentication/commit/64530644f9b37ebb76ca14aeb83a77597a0034b7
- https://github.com/team-alembic/ash_authentication/commit/42edcd8ebb13fafbb168f12591d7518ce0611fec
- https://github.com/team-alembic/ash_authentication/commit/738bf9f32f2aa0d1bb92ce9ca5c2476cb5710459
- https://github.com/team-alembic/ash_authentication/commit/2bd630eef8b7c8ae1e90e8fd43ba12fbc7e256ba