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CVE-2026-72889: Net Oauth Unvalidated Signature Method Verifycve-2026-72889-net-oauth-unvalidated-signature-method-verify

OAuth message verification dynamically resolves the signature algorithm from the untrusted request parameter without checking against an allowlist of permitted signature methods. This allows signature algorithm downgrade/confusion attacks.

GenericCVE-2026-72889 CWE-327 CWE-347

by Provallyupdated 2026-09-02Apache-2.0

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