My impression (HuggingFace incident) was they put some environment together in kubernetes like it was some B2B SaaS and tossed in an off-the-shelf package manager. And my thought there is, I know nothing about this package manager, but even if it's a pretty good package manager I would not expect such a product to be particularly hardened against being exploited to gain internet access. My other thought is if the package manager wasn't a convenient hole, they would probably have found something wrong with the kubernetes setup.

And then there was the Anthropic story where they just forgot to remove internet access.