CVE-2026-15903: Out of bounds read and write in V8
Chromium: CVE-2026-15903 Out of bounds read and write in V8
Other sources
Out of bounds read and write in V8 in Google Chrome prior to 150.0.7871.128 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
— MITRE
This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.
— Microsoft
Credit
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 150.0.7871.128 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 150.0.4078.83 - Upgrade
Upgrade
debian/chromiumto a version that resolves this vulnerability.Fixed in 156.0.8078.73-1~deb12u1Fixed in 150.0.7871.181-1~deb13u1Fixed in 156.0.8078.73-1~deb13u1Fixed in 156.0.8078.47-1Fixed in 156.0.8078.79-1 - Upgrade
Upgrade
Google Chrome (Chromium/V8)to a version that resolves this vulnerability.Fixed in 150.0.7871.128
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What is the severity of CVE-2026-15903?
CVE-2026-15903 has a high severity rating of 7.
What type of vulnerability is CVE-2026-15903?
CVE-2026-15903 is an out of bounds read and write vulnerability in V8.
Which software is affected by CVE-2026-15903?
CVE-2026-15903 affects Google Chrome.
How do I fix CVE-2026-15903?
To fix CVE-2026-15903, ensure that you update Google Chrome to the latest version.
When was CVE-2026-15903 published?
CVE-2026-15903 was published on July 6, 2026.