You need to use the Disengagement rules for both/all opponents, which means multiple CAs. A lenient GM might allow you to make one disengagement against multiple foes but I think that such circumstances would need to depend on the competency of those opponents. So, if battling a pair of semi-confident, semi-competent trollkin, then perhaps just the one attempt, as those enemies will be relying on each other and act as a unit. However against competent, clever opponents, then each needs to be treated as an individual.
If you're out of CAs - then Hero Points can be used to generate a 'last ditched attempt' CA for tight spots such as this.
Being outnumbered or surrounded in combat is a real hazard to health!