Is there a scenario where your CV can be >1 page?

I’ve had a lot of part-time jobs and activities and I’m struggling to fit everything on one page. However I know most companies prefer one page CVs (especially for more junior people). Is this an absolute rule? Would a CV with more than one page be an auto reject?

I don’t think so, they’re just looking for highlights not a comprehensive list

I would strongly recommend against having a resume longer than a page (at least speaking for finance). We most likely will auto reject if you have anything more than a page. Even for fairly senior and experienced people, resumes won’t be more than a page.