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Epoch AI Reports Open-Weight GLM 5.3 Exploits Firefox Patch Gap

Epoch AI published research on October 29, 2026, reporting that GLM 5.3, an open-weight model released by Z.ai in August 2026, can exploit the browser patch gap — the window between a security fix becoming public and reaching users — to compromise six recent Mozilla Firefox releases at a marginal c…

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  1. 2026-10-29 23:02 · Unite.AI
    Epoch AI Reports Open-Weight GLM 5.3 Exploits Firefox Patch Gap

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