oscerd opened a new pull request, #26726:
URL: https://github.com/apache/camel/pull/26726

   This fixes [CAMEL-24444](https://issues.apache.org/jira/browse/CAMEL-24444).
   
   Core XML-signature validation proves only that each `Reference`'s digest 
matches the content that Reference resolves to — not that the node the route 
ultimately consumes is covered by any signature. For an enveloped or detached 
signature handled by the default output-node search, an attacker can therefore 
present a document where a valid `Reference` covers a sub-element while the 
whole (unsigned) document element is what gets emitted onto the route: XML 
Signature Wrapping.
   
   A new opt-in `enforceReferenceCoverage` on `DefaultXmlSignature2Message` 
(default off) requires that one of the validated References cover the document 
element being emitted, otherwise verification fails. It is off by default 
because the legitimate detached-signature flow — a Reference deliberately 
covering a sub-element with the whole document emitted on output — would 
otherwise break; a deployment that wants the guarantee enables it, or supplies 
a custom output-node search / `XmlSignatureChecker` when the default search 
does not fit.
   
   **Test:** `DefaultXmlSignature2MessageReferenceCoverageTest` covers the 
covered and uncovered cases with the option both on and off.
   
   🤖 Generated with [Claude Code](https://claude.com/claude-code)
   


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