Chrome 156 and Firefox 159 Patch Over 200 Vulnerabilities
Google and Mozilla released browser updates fixing more than 200 security flaws: Chrome 156 patches 52 defects, including four critical ones, while Firefox 159 resolves 167 issues, 108 of them high-severity. The critical FileSystem bug CVE-2026-118306 allowed code execution outside the sandbox. Neither vendor reported exploitation in the wild.
- Chrome 156 fixes 52 flaws, including 4 critical and 46 high-severity bugs
- CVE-2026-118306 in Chrome FileSystem allowed code execution outside the sandbox
- Firefox 159 patches 167 defects, 108 high-severity, mostly use-after-free
- Thunderbird 159 and Firefox ESR 153.6 and 115.44 also received fixes
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