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Security Advisory: CVE Affecting Percona Monitoring and Management (PMM)
Originally from percona.com/blog/feed/
July 31, 2025 Read Original Article

Oh, Percona PMM! The all-seeing eye for your MySQL empire, except apparently, it's got a rather nasty blind spot – and a convenient memory wipe when it comes to past breaches. Because, of course, the very first thing they want you to know is that 'no evidence this vulnerability has been exploited in the wild, and no customer data has been exposed.' Right. Because if a tree falls in the forest and you don't have enough logs to parse its fall, did it even make a sound? It's the corporate equivalent of finding a gaping hole in your security fence and proudly declaring, 'Don't worry, we haven't seen any sheep escape yet!' Bless their hearts for such optimistic denial.

But let's not dwell on their admirable faith in invisible, unlogged non-events. The real gem here is that this 'vulnerability has been discovered in all versions of Percona Monitoring and Management.' All of them! Not just some obscure build from 2017 that nobody uses, but the entire family tree of their supposedly robust, enterprise-grade monitoring solution. It's almost impressive in its comprehensive lack of foresight.

And where does this monumental oversight originate? Ah, 'the way PMM handles input for MySQL services and agent actions.' So, basically, it trusts everyone? It's like building a secure vault and then leaving the key under the mat labeled 'please sanitize me.' And naturally, it's by 'abusing specific API endpoints.' Because why design a secure API with proper authentication and input validation when you can just throw some JSON at the wall and hope it doesn't accidentally reveal your grandma's maiden name? This isn't some cutting-edge, nation-state zero-day. This sounds like 'we forgot to validate the user input' level stuff, for a tool whose entire purpose is to monitor the most sensitive parts of your infrastructure. The very thing you deploy to get a handle on risk is, itself, a walking, talking risk assessment failure.

So, what's next? They'll patch it, of course. They'll issue a stern, somber release about 'lessons learned' and 'commitment to security' – probably with some newly minted corporate jargon about 'strengthening our security posture through proactive vulnerability management frameworks.' And then, sometime next year, we'll get to do this exact same cynical dance when their next 'revolutionary' feature, designed to give you 'unprecedented insights into your database performance,' turns out to be broadcasting your entire database schema on a public Slack channel. Just another glorious day in the never-ending parade of 'trust us, we're secure' software.