CVE-2026-79243: Improper input validation in Google Chrome
Description
CVE-2026-79243 is a medium severity vulnerability in Google Chrome on Windows prior to version 152.0.7977.65. It involves improper input validation in the ReadingList feature, which could allow a remote attacker who has compromised the renderer process to bypass the web origin policy using a crafted HTML page. This vulnerability does not impact confidentiality but can cause integrity issues. There is no explicit vendor advisory stating a patch or fix status, and no known exploits in the wild have been reported.
CVSS v3.1
Score 6.5medium
Affected software
Chrome
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Google Chrome's ReadingList component on Windows versions before 152.0.7977.65 allows a remote attacker with control over the renderer process to bypass the web origin policy by leveraging improper input validation via a crafted HTML page. The CVSS score is 6.5 (medium), indicating a moderate impact primarily on integrity. The vulnerability was published on August 25, 2026, and is documented under CVE-2026-79243. The vendor advisory link is provided but does not explicitly confirm patch availability or remediation level.
Potential Impact
The vulnerability allows bypassing of the web origin policy, potentially enabling an attacker to perform unauthorized actions or manipulate content integrity within the browser context. Confidentiality and availability are not impacted. No known active exploitation has been reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory at https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html for current remediation guidance. Until official guidance or a patch is confirmed, users should exercise caution with untrusted content and consider updating to the latest Chrome version once available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-08-25T06:12:27.355Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html","vendor":"Google"}]
Threat ID: 6a8df9e6acd9273b49ac7329
Added to database: 08/25/2026, 20:24:06 UTC
Last enriched: 09/10/2026, 13:23:08 UTC
Last updated: 10/07/2026, 18:48:23 UTC
Views: 33
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