Why would it be getting attention? There’s an enormous amount of garbage software out there, and not an endless supply of researchers. Especially tooling like this, used internally where it’s assumed that security is the job of something else. It’s far from the first time serious but simple vulnerabilities have gone unnoticed for a long time. And the use case of having this be your way to the internet is probably rare, so nobody has tried very hard (or tried but never told anyone).

I’ve looked at the CVEs a bit more and it’s just very clearly a pattern of systemic issues with validation, be it URLs or tokens.

It just shouldn’t be that hard to believe that OpenAI just didn’t care very much and thus did a crap job. The whole model of the sandbox is terrible, so why would they bother thinking about the implementation much?