PT-2026-44681 · Google · V8+1

Published 2026-05-27 · Updated 2026-05-28 · CVE-2026-9973

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Google Chrome versions prior to 148.0.7778.216

Description An out-of-bounds write exists in the V8 JavaScript engine, which is the component responsible for compiling and executing JavaScript code. This issue stems from a JIT (Just-In-Time) loop optimization bug, where the engine optimizes code during execution to improve performance. A remote attacker can exploit this by using a crafted HTML page to execute arbitrary code within a sandbox.

Recommendations Update to version 148.0.7778.216 or later.

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2026-9973

Affected Products

Google Chrome

V8

References · 5

• https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0877304591.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-9973 · Security Note
• https://crbug.com/509268941 · Note
• https://issues.chromium.org/issues/509268941 · Note
• https://twitter.com/itszn13/status/2060130630671966428 · Twitter Post