System access restriction bypass via BFCache authorization gap
Published Aug 25, 2026 · Updated Aug 28, 2026
Missing authorization in Google Chrome before 152.0.7977.65 allows remote attackers with renderer compromise to bypass system access restrictions. The BFCache subsystem omits a required authorization check when handling a crafted HTML page, but Google has not disclosed the affected function or restricted resource. Exploitation requires prior compromise of Chrome's renderer process; the published impact is limited to crossing system access restrictions from that compromised renderer.
Summary
What happened
Missing authorization in Google Chrome before 152.0.7977.65 allows remote attackers with renderer compromise to bypass system access restrictions. The BFCache subsystem omits a required authorization check when handling a crafted HTML page, but Google has not disclosed the affected function or restricted resource. Exploitation requires prior compromise of Chrome's renderer process; the published impact is limited to crossing system access restrictions from that compromised renderer.
The record
- CVE
- CVE-2026-78967
- Published
- Aug 25, 2026
- Updated
- Aug 28, 2026
- Vendor
- Google Cloud
- Product
- Google Chrome
- Classifications
- CWE-862, T1068
- Attack vector
- network
- Privileges
- Unavailable
Timeline
How it unfolded
- Aug 25, 2026CVE publishedPublication date reported by the CVE source.
- Aug 28, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=152.0.7977.65 <152.0.7977.65
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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