High [CVE-2026-19156] Heap buffer overflow allows heap corruption via malicious extension
This high-severity Red Hat Linux advisory covers CVE-2026-19156.
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Summary
Heap buffer overflow in Base in Google Chrome prior to 151.0.7922.109 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted Chrome Extension. (Chromium security severity: High) This vulnerability allows for potential heap corruption, which could be exploited to impact the integrity and availability of the browser.
An Important heap buffer overflow flaw was found in the Base component of Chromium. While user interaction is required, the potential for significant impact on affected systems warrants the Important severity.
Red Hat severity: Important — CVSS 7.8 (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). Weakness: CWE-787.
- < 151.0.7922.109
Official advisory · high-confidence parse· fetched 29 days ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 29 days ago·verify at source
Mitigation
The source record does not include mitigation steps. That is not a statement that no fix exists — read the vendor advisory below for the authoritative guidance.
Official advisory · high-confidence parse· fetched 29 days ago·verify at source
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