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Vercel April 2026 security incident

bleepingcomputer.com

241–250 of 540 posts

Re: Vercel April 2026 security incident

#241

I've been part of a response team on a security incident and I really feel for them. However, this initial communication is terrible. Something happened, we won't say what, but it was severe enough to notify law enforcement. What floors me is the only actionable advice is to "review environment variables". What should a customer even do with that advice? Make sure the variable are still there? How would you know if a…

Welcome to the show.

While a different kind of incident (in hindsight), the other week Webflow had a serious operational incident.

Sites across the globe going down (no clue if all or just a part of them). They posted plenty of messages, I think for about 12 hours, but mostly with the same content/message: "working on fixing this with an upstream provider" (paraphrased). No meaningful info about what was the actual problem or impact.

Only the next day did somebody write about what happened. Essentially a database running out of storage space. How that became a single point of failure, to at least plenty of customers: no clue. Sounds like bad architecture to me though. But what personally rubbed me the wrong way most of all, was the insistence on their "dashboard" having indicated anything wrong with their database deployment, as it allegedly had misrepresented the used/allocated storage. I don't who this upstream service provider of Webflow is, but I know plenty about server maintenance.

Either that upstream provider didn't provide a crucial metric (on-disk storage use) on their "dashboard", or Webflow was throwing this provider under the bus for what may have been their own ignorant/incompetent database server management. I guess it all depends to which extend this database was a managed service or something Webflow had more direct control over. Either way, with any clue about the provider or service missing from their post-mortem, customers can only guess as to who was to blame for the outage.

I have a feeling that we probably aren't the only customer they lost over this. Which in our case would probably not have happened, if they had communicated things in a different way. For context: I personally would never need nor recommend something like Webflow, but I do understand why it might be the right fit for people in a different position. That is, as long as it doesn't break down like it did. I still can't quite wrap my head around that apparent single point of failure for a company the size of Webflow though.

/anecdote

Re: Vercel April 2026 security incident

#242

Earlier quoted context omitted.

I think most people would agree. However it is less clear on how to do this, people mostly take the easiest path.

Its an eternal september moment. https://en.wikipedia.org/wiki/Eternal_September

Eternal Sloptember

Re: Vercel April 2026 security incident

#243
post #105

Earlier quoted context omitted.

They put a massive amount of VC cash into convincing people that Next.js was "the modern way" to create a website. Then they got lucky with the timing of LLMs becoming popular while they were the hot thing, leading LLMs to default to it when creating new websites. To picture that amount of VC cash - they're at Series F , and a huge chunk of that went towards marketing. Both have been changing as people realize it's r…

> To picture that amount of VC cash - they're at Series F, and a huge chunk of that went towards marketing. I guess they should have put some of that marketing money into hiring someone to manage the security of their systems. It's pretty telling that they had to hire an "incident response provider" just to figure out what happened and clean up after the hack. If you treat security like something you don't have to wo…

> they had to hire an "incident response provider" just to figure out what happened and clean up after the hack

Plenty to criticize them for, but that's totally standard and not something to ding them for. Probably something their cyber insurance has in their contract.

Forensics is its own set of skills, different from appsec and general blue team duties. You really want to make sure no backdoors got left in.

Re: Vercel April 2026 security incident

#244
post #36

Earlier quoted context omitted.

Your entire recent posting history is "software engineering is over, AI has won." What's your agenda here?

how many recent security breaches have we seen?

Most of recent issues, including this incident, happened not due to smart superintelligent "agents" taking over the world - chatbots and other text generators are about as intelligent amd powerful as a dead starfish - but due to the combined stupidity of the said chatbots amd lazy idiots who use them to hide their own incompetence and thus produce such embarassing mistakes. A few years ago, they would be fired for exposing secrets in plain text, but since their manager wanted an AI-Workflow...

Re: Vercel April 2026 security incident

#245
post #195

Earlier quoted context omitted.

I'm suggesting people shouldn't lie to sell things because their customers will believe them and this causes measurable harm to society.

AI does outsource thinking. It is not a lie.

I think if you believe that you're either lying or experiencing psychosis. LLMs are the greatest innovation in information retrieval since PageRank but they are not capable of thought anymore than PageRank is.

Re: Vercel April 2026 security incident

#246

Earlier quoted context omitted.

The actual app name would be good to have. Understandable they don’t want to throw them under the bus but it’s just delaying taking action by not revealing what app/service this was.

I was trying to look it up (basically https://developers.google.com/identity/protocols/oauth2/java... -- the consent screen shows the app name) but it now says "Error 401: invalid_client; The OAuth client was not found." so it was probably deleted by the oauth client owner.

Makes it even more relevant to have the actual app or vendor name - who’s to say they just removed it to save face and won’t add it later?

Re: Vercel April 2026 security incident

#247
post #175

Earlier quoted context omitted.

The other day, I was forcing myself to use Claude Code for a new CRUD React app[1], and by default it excreted a pile of Node JS and NPM dependencies. So I told something like, "don't use anything node at all", and it immediately rewrote it as a Python backend, and it volunteered that it was minimizing dependencies in how it did that. [1] only vibe coding as an exercise for a throwaway artifact; I'm not endorsing vib…

You can tell Claude to use something highly structured like Spring Boot / Java. It's a bit more verbose in code, but the documentation is very good which makes Claude use it well. And the strict nature of Java is nice in keeping Claude on track and finding bugs early. I've heard others had similar results with .NET/C#

Same for Go.

Re: Vercel April 2026 security incident

#248

Earlier quoted context omitted.

It's interesting how many of the low-effort vibecoded projects I see posted on reddit are on vercel. It's basically the default.

next, vercel, and supabase is basically the foundation of every vibecoded project by mere suggestion.

They’re all shit too. All three decided to do custom auth instead of OIDC and it’s a nightmare to integrate with any of them.

Re: Vercel April 2026 security incident

#249
post #97

Earlier quoted context omitted.

You use a free template that's done in Next.js and uses its Image component, so you need a server. Everything runs fine locally until you try to deploy it, and bam you need 4g ram machine to run the thing. So you host it on Vercel for free cause it's easy! Then you want to check for more than 30 seconds of analytics, and it's pay time.

I am not following the logic. If you’re a hobbyist, sure. But the argument is if you’re using Vercel for production, you’re paying 5-10x what you’d pay for a VM, with 4gb. So then what’s the rationale? You can’t be a hobbyist but also “it’s pay time” for production?

Vercel promises to engineer the pain away when it comes to deployment. The thing however is that Vercel introduced that pain in the first place by writing sub-par documentation and splitting many of NextJS functions into small parts with different cost.

Re: Vercel April 2026 security incident

#250

I'm on a macbook pro, Google Chrome 147.0.7727.56. Clicking the Vercel logo at the top left of the page hard crashes my Chrome app. Like, immediate crash. What an interesting bug.

Sadly I coudn't make Chrome crash here. Would be fun.

Chrome Version 147.0.7727.101 (Official Build) (64-bit). Windows 11 Pro.

Video: https://imgur.com/a/pq6P4si

I use uBlock Origin Lite. Maybe it blocks some crash causing script? edit: still no crash when I disabled UBO.

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