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Error "The sign-in was unsuccessful. Try again" And "Error validating SAML message; caused by: Signature algorithm http://www.w3.org/2000/09/xmldsig#rsa-sha1 is blacklisted]" When Logging in With SAML SSO to Tableau Cloud Using SHA-1

Veröffentlichungsdatum: Feb 10, 2026
Beschreibung

When attempting to login to Tableau Cloud using SAML with an Identity provider that uses SHA-1 signature algorithm or certificates, the following errors occur: 

"The sign-in was unsuccessful. Try again" 

Or

"Error validating SAML message; caused by: Signature algorithm http://www.w3.org/2000/09/xmldsig#rsa-sha1 is blacklisted"

Cause

RSA-SHA1 signing algorithm and certificates are no longer supported in Tableau Cloud.
Lösung
Change your signing algorithm and certificates to SHA-256 instead of SHA-1. Contact your Identity Provider if assistance is needed.  

Verify and set/configure the following values in Auth0 settings. Make sure IdP assertions and certificates used are signed using SHA-2/256 encryption. 

  "signatureAlgorithm": "rsa-sha256",
Nummer des Knowledge-Artikels

001472702

 
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