High [CVE-2026-84357] Improper input validation in Omnibox
This high-severity Red Hat Linux advisory covers CVE-2026-84357.
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Summary
Improper input validation in Omnibox in Google Chrome prior to 152.0.7977.75 allowed a remote attacker leveraging social engineering to bypass web origin policy via crafted network traffic. (Chromium security severity: High) An improper input validation flaw was found in the Omnibox component of the Chromium browser.
Upstream bug(s): Red Hat Product Security rates the severity of this flaw as determined by the Google Chrome Security Advisory. Red Hat severity: Important — CVSS 8.1 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N).
Weakness: CWE-346.
- < 152.0.7977.75
Official advisory · high-confidence parse· fetched 19 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 19 days ago·verify at source
Mitigation checklist
- Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Official advisory · high-confidence parse· fetched 19 days ago·verify at source
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