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jrochkind101/21/20251 replyview on HN

I dont' believe the Signal app/network is choosing to cacheimages in a CDN?

But any user can send anyone other user a message that includes a link to a CDN-cached resource. Isn't that the "attack" here? Or am I misunderstanding?


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aprilnya01/21/2025

Signal does cache them in a CDN. If the vulnerability was sending any link, you could just set up your own web server and get the person’s IP

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