CVE-2026-48717

CVE-2026-48717 · OpenAM OAuth Authorization Bypass via PKCE Challenge

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Open Access Management (OpenAM) is an access management solution. Prior to 16.1.1, AuthorizationCodeGrantTypeHandler requires a code_verifier only when the realm-wide codeVerifierEnforced setting is enabled, even when an authorization code stores a code_challenge. Because that setting is disabled by default, an attacker who intercepts a PKCE-protected authorization code can omit code_verifier and redeem the code, while an explicitly incorrect verifier is rejected. Public clients are directly affected, and confidential-client exploitation additionally requires client authentication material or another redemption context. This issue is fixed in version 16.1.1.

CVSS 9.1 · Критический · EPSS 0,5%

Опубликовано

2026-09-15T09:57:53.707Z

Обновлено

2026-09-15T13:52:56.107Z

Стек: system

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