High [CVE-2026-76040] Arbitrary code execution via use-after-free vulnerability
This high-severity Red Hat Linux advisory covers CVE-2026-76040.
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Summary
A flaw was found in chromium-browser. This use-after-free vulnerability allows a remote attacker, through social engineering, to execute arbitrary code outside of the sandbox by enticing a user to visit a specially crafted HTML page.
This could lead to a complete compromise of the affected system. Exploitation requires social engineering to entice a user to visit a specially crafted HTML page, making user interaction a prerequisite for a successful attack.
Red Hat severity: Important — CVSS 8.3 (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H). Weakness: CWE-825.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · medium-confidence parse· fetched 1 hour 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 · medium-confidence parse· fetched 1 hour 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 · medium-confidence parse· fetched 1 hour ago·verify at source
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