RPC getPages(String token, String spaceKey) throws IllegalArgumentException

Referencing getPages (described here : https://developer.atlassian.com/confdev/confluence-rest-api/confluence-xml-rpc-and-soap-apis/remote-confluence-methods)

Somehow when creating a page (I suspect when cutting/pasting from a badly formatted Word document) a title containing a vertical tab (0xb) was used. Confluence accepts this character and the page renders without complaint (ignoring the character) but this API will fail when requesting the containing space with the following error:

{{java.lang.IllegalArgumentException: The char '0xb' in 'Higher Criticism for Large-Scale Inference, especially for Rare and Weak Eff
ects' is not a valid XML character}}

I understand these APIs are deprecated but it's not possible for us to move off of them directly - they are being used by the Coveo enterprise search server which we employ.