Cross-origin data disclosure via MediaCapture authorization failure
Published Sep 29, 2026 · Updated Sep 29, 2026
Incorrect authorization in MediaCapture in Google Chrome before 154.0.8037.57 allows remote attackers to obtain cross-origin data via a crafted extension. Google has not disclosed the specific MediaCapture authorization check or code path that mishandles the extension request. Exploitation requires social engineering that causes a user to engage with the crafted extension; the reported consequence is data disclosure.
Summary
What happened
Incorrect authorization in MediaCapture in Google Chrome before 154.0.8037.57 allows remote attackers to obtain cross-origin data via a crafted extension. Google has not disclosed the specific MediaCapture authorization check or code path that mishandles the extension request. Exploitation requires social engineering that causes a user to engage with the crafted extension; the reported consequence is data disclosure.
The record
- CVE
- CVE-2026-95317
- Published
- Sep 29, 2026
- Updated
- Sep 29, 2026
- Vendor
- WebM Project
- Product
- Google Chrome
- Classifications
- T1204
- Attack vector
- network
- Privileges
- Unavailable
Timeline
How it unfolded
- Sep 29, 2026CVE publishedPublication date reported by the CVE source.
- Sep 29, 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=154.0.8037.57 <154.0.8037.57
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
CVSS describes severity. EPSS estimates exploitation probability.
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.
Activity data is delayed. The latest report is Sep 28, 2026.
Weakness, pattern, technique
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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