Cloudflare revisits remote Spectre attacks on Workers
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What happened
Cloudflare published a report reassessing remote Spectre attacks on its Workers infrastructure. The report details new attack primitives such as Spectre gadgets, remote timers, and achieving co-location, as well as new defenses that further harden Cloudflare Workers. The research is based on reassessments from 2024 and 2025. The report was also discussed on Hacker News.
Summary written by AI strictly from the sources below
Why it's spreading
- ConfirmedCloudflare Blog published a first-party announcement
- Confirmed2 sources are covering it, Cloudflare Blog first
Timeline
- published report on remote Spectre attacksCloudflare Blog
- discussed the report on Hacker NewsHacker News
Sources
Official
- A revisit of remote Spectre attacks on Cloudflare WorkersCloudflare Blog