[ctx]ctxseccontext security: attacks on the harness and context layer of AI agents, plus exploited-now news, hunting and playbooks.

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confirmed (vendor), no exploitation noted

Chrome 155 stable: 37 security fixes, 7 critical (incl. ANGLE CVE-2026-110152)

Google's Oct 13 desktop Stable update (155.0.8059.79/.80 Windows and Mac, 155.0.8059.79 Linux) fixes 37 security bugs: seven Critical (ANGLE buffer overflow CVE-2026-110152 plus use-after-frees in Browser, PDF, Network, Core, SVG and Media), 29 High and one Medium. Google's notes do not flag any as exploited in the wild. Rollout is staged over days or weeks, so force the update on managed fleets. One V8 bug is credited to Xinyang Ge (Anthropic), "assisted by Claude".

Sources: Chrome Releases · CVE-2026-110152