SAML Response Attribute Definition change between CAS 6.6.x and CAS 7.0.x and up

[Derek Badge]

Hello everyone,

We are in the middle of a migration from CAS v6.6.x to v7.2.x and are completely stuck on a SAML attribute release issue. We've been troubleshooting this and would be grateful for any insight the community can offer.

Our Goal is very simple:

Take the source directory attribute cn and release it in the SAML assertion with the Name uid.  I have two SP's now where they require a specific Name and will not read FriendlyName.  

The Problem:
In 6.6.x, mapping cn to uid results in:
<saml2:Attribute FriendlyName="uid" Name="uid" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri">

in 7.0.x and up it reads the attribute definition and overwrites Name,
<saml2:Attribute FriendlyName="uid" Name="urn:oid:0.9.2342.19200300.100.1.1" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:uri">

I'm sure there's probably some easy way of doing this that I'm completely missing. 

Best Regards,

Derek

[Eugene Willis]

Hey we experienced this we had to add an empty “samlidp-attribute-definitions.json” in your build the path src/main/resources/ . 

Sent from my iPhone

On Aug 9, 2025, at 2:50 AM, 'Derek Badge' via CAS Community <cas-...@apereo.org> wrote:

Hello everyone,

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[Derek Badge]

That makes sense.  Thanks for that, it was driving me nuts.  I have found the other thread referring to making that change.