Memory disclosure via WebCodecs out-of-bounds read
Published Apr 1, 2026 · Updated Apr 1, 2026
Out-of-bounds read in Google Chrome before 146.0.7680.178 allows remote attackers to read process memory through a crafted HTML page. The flaw is in WebCodecs, but Google has not disclosed the affected function, buffer, or malformed codec operation that triggers the over-read. Exploitation requires a user to visit attacker-controlled content; the reported consequence is out-of-bounds memory disclosure, not code execution.
Summary
What happened
Out-of-bounds read in Google Chrome before 146.0.7680.178 allows remote attackers to read process memory through a crafted HTML page. The flaw is in WebCodecs, but Google has not disclosed the affected function, buffer, or malformed codec operation that triggers the over-read. Exploitation requires a user to visit attacker-controlled content; the reported consequence is out-of-bounds memory disclosure, not code execution.
The record
- CVE
- CVE-2026-5282
- Published
- Apr 1, 2026
- Updated
- Apr 1, 2026
- Vendor
- Go standard library
- Product
- Google Chrome
- Classifications
- CWE-125, CAPEC-540, T1189
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 1, 2026CVE publishedPublication date reported by the CVE source.
- Apr 1, 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=146.0.7680.178 <146.0.7680.178
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.
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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