Heap corruption via WebAudio out-of-bounds access
Published Mar 20, 2026 · Updated Mar 20, 2026
Out-of-bounds read and write in Google Chrome before 146.0.7680.153 allows remote attackers to corrupt heap memory through crafted HTML. Google identifies WebAudio as the affected component but has not disclosed which routine performs the unchecked memory access or what input crosses its bounds. Exploitation requires a user to load attacker-controlled content, and successful corruption can compromise browser confidentiality, integrity, and availability.
Summary
What happened
Out-of-bounds read and write in Google Chrome before 146.0.7680.153 allows remote attackers to corrupt heap memory through crafted HTML. Google identifies WebAudio as the affected component but has not disclosed which routine performs the unchecked memory access or what input crosses its bounds. Exploitation requires a user to load attacker-controlled content, and successful corruption can compromise browser confidentiality, integrity, and availability.
The record
- CVE
- CVE-2026-4459
- Published
- Mar 20, 2026
- Updated
- Mar 20, 2026
- Vendor
- Go standard library
- Product
- Google Chrome
- Classifications
- CWE-787, CWE-125, T1189
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 20, 2026CVE publishedPublication date reported by the CVE source.
- Mar 20, 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=146.0.7680.153 <146.0.7680.153
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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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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