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Actively exploited sandbox RCE in all Chromium versions

nvd.nist.gov

351–360 of 528 posts

Re: Actively exploited sandbox RCE in all Chromium versions

#351
post #61

Earlier quoted context omitted.

In the future we can ask that your JaveScript and Wasm comes with a proof of being benign.

Prior art: the evil bit https://datatracker.ietf.org/doc/html/rfc3514

The idea is to make it harder for malicious actors to produce a valid proof than it is for benign actors.

Re: Actively exploited sandbox RCE in all Chromium versions

#353
post #71
post #59

Earlier quoted context omitted.

What kind of auction would you like to run? Remember that you can sell the same vulnerability to multiple people: it's software you can copy.

Maybe needs a Good-Guy-Buy-It-Now w/instant delivery at a fair price. (OK that’s kind of a threat—you’re running an auction and you have the price the corp has to pay to avoid the auction ending.) $1k is so dumb and the fact we’re discussing auctions is proof (hello, Sundar, what you doing over there?). Guess this will change after the next e.g. nationwide hospital ransomware by a hacker who publicly laments bounty r…

> Guess this will change after the next e.g. nationwide hospital ransomware by a hacker who publicly laments bounty rates, if the news cycle accommodates the story long enough.

Negotiating with terrorists or black mailers is a bad idea.

Re: Actively exploited sandbox RCE in all Chromium versions

#354

Earlier quoted context omitted.

Or disable JS altogether, and enjoy many sites working much quicker. Many others fail & need to be selectively allowed, but it's been worth it.

If by quicker you mean blank content, I'll agree, it is worth it.

Somehow I don't think you've tried, if you think all I get is blank content.

Re: Actively exploited sandbox RCE in all Chromium versions

#355
post #287

Earlier quoted context omitted.

I'm just saying it's more evidence that Google should be broken up.

How would you break up Google that would make browsers more secure?

Google should have been split up into shreds like 2 decades ago. Search wants to have income from ads? Good sell it to anybody who pays the most, just like every single newspaper does. Gmail wants to sell our data, or ad space? Good sell them, and not just reuse them internally. Chrome wants to monetize every single request you do? Go, sell them on the open market. And not this fake, "we're separate companies, but only on paper" way.

This should have been done a long time ago.

Firefox, and the browser market would be much more healthy. Btw, Microsoft, Apple, Facebook, now even Twitter/SpaceX and all of these should have been forced the same way. And of course not just in this field, but all of them, like oil companies. They can pivot, of course, with some grace period, but that would mean giving up something at the end.

And if we are there, we can abolish most of trade secrecy too, which exists only to keep up the status quo while hindering progress.

Re: Actively exploited sandbox RCE in all Chromium versions

#356

Is the HN title true that it affects all "all Chromium versions"? Per OP link, it only affects Chrome versions prior to .82; .82 was released as stable 2 days ago. [1] (HN title also does not match the original title, which is the CVE ID -- not particularly intuitive.) [1] https://chromereleases.googleblog.com/2026/09/stable-channel...

"only"

Re: Actively exploited sandbox RCE in all Chromium versions

#358

Let's take a moment to talk about the monetary value of this vulnerability. According to the Chrome release page ( https://chromereleases.googleblog.com/2026/09/stable-channel... ), Google paid a researcher $1000 for ethically reporting this. The CVE associated with it (CVE-2026-85046) is already being exploited in the wild. If we put our thinking caps on, how much do you think this vulnerability is actually worth? H…

> researchers shouldn't hold bugs for ransom or demand high payment.

why? google removed don't be evil off their charter a long time ago. why shouldn't security researchers also seek to maximize profits?

Re: Actively exploited sandbox RCE in all Chromium versions

#359
post #92

Earlier quoted context omitted.

If the vulnerability is already being exploited in the wild --- as in, it's a vector people already know about and are tracking --- it's possibly not worth much at all. Vulnerability valuations depend heavily on the lifespan of the vulnerability; payments on black market are tranched (explicitly or less explicitly, as with "maintenance payments") based on whether they're patched. Further: a vulnerability is probably…

Knowing the vulnerability, creating an exploit might be relatively easy now that we have AI to figure the boring stuff out.

This "only" escapes the JavaScript sandbox. You still need to chain it with an escape for the process sandbox. So it's not just the boring stuff of turning a predictable crash into arbitrary execution, but also finding a second RCE vulnerability to chain this with

Re: Actively exploited sandbox RCE in all Chromium versions

#360

Normalising running arbitrary code delivered over the internet (in the form of JavaScript and WASM), as a necessary condition for accessing most web pages may not have been one of the best decisions we have made.

Controversial opinion on this website ;)
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