Summary
Google Brotli contains an unchecked return value vulnerability that allows a remote unauthenticated attacker to corrupt adjacent decoder state memory, disclose sensitive memory contents, cause a denial of service, or potentially execute arbitrary code using a crafted Brotli-compressed stream.
- Vendor
- Product
- Brotli
- Added to KEV
- Oct 27, 2026
- Remediation due
- Nov 10, 2026 (US federal deadline)
- Ransomware use
- Not known
- Weakness
- CWE-252, CWE-787
- EPSS
- 82.6% as of Nov 12
In the news · last mention Nov 2
In national CERT advisories
- Apple Releases Security Update to Fix Vulnerabilities in iMessage and Core System Components TH
ThaiCERT (Thai) · Nov 11, 2026 - Apple Products Multiple Vulnerabilities
HKCERT security bulletins · Nov 10, 2026
Linked
Actors named alongside it:
none
Incidents exploiting it:
- none recorded
References