Introducing What The Claude: Browser Edition.
A series where we pick apart browser bugs found/reported by Claude.
First up: CVE-2026-2796, a SpiderMonkey Wasm import bug that leads to addrof/fakeobj/read-write.
github.com/str8outtaheap/…
What The Claude, episode 4.
As promised, we chained Bug 2024918 and Bug 2022034 into a full Firefox sandbox escape.
The phi gets us in. The NaN gets us out.
PhiNaNigans.
What The Claude, episode 3.
We're taking a break from content-process RCEs for Bug 2022034.
A raw NaN. Typed JS actor IPC. A parent-process fake object. An XUL leak. Code execution outside the sandbox.
NaN around and find out.
What The Claude: Browser Edition, episode 2.
This time: Bug 2024918.
A phi node, SpiderMonkey's JIT pipeline, Wasm GC scalar replacement, escape analysis, and one wrong equality check.
Let’s dive in.