CVE-2026-17977: Policy bypass in Google Chrome
A policy bypass vulnerability in CSS within Google Chrome prior to version 151.0.7922.72 allows a remote attacker to leak cross-origin data by using a crafted HTML page. The issue has been assigned a low severity by Chromium security. The vulnerability affects Chrome versions before 151.0.7922.72. There is a vendor advisory available but no explicit patch or remediation level stated in the provided data.
AI Analysis
Technical Summary
CVE-2026-17977 describes a policy bypass vulnerability in the CSS implementation of Google Chrome that enables remote attackers to leak cross-origin data via a specially crafted HTML page. This vulnerability affects Chrome versions prior to 151.0.7922.72. The Chromium security team has rated this issue as low severity. While a vendor advisory URL is provided, it does not explicitly confirm the patch status or remediation level in the given data.
Potential Impact
The vulnerability allows remote attackers to bypass CSS policy restrictions and leak data across origins, potentially exposing sensitive information from other web origins. The impact is considered low severity by the Chromium security team, indicating limited risk or exploitability.
Mitigation Recommendations
Check the vendor advisory at https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_0887107924.html for the latest remediation guidance. Since the vulnerability affects versions prior to 151.0.7922.72, updating to version 151.0.7922.72 or later is recommended if confirmed by the vendor advisory. Patch status is not yet confirmed from the provided data; verify current remediation status from the official Google Chrome release notes.
CVE-2026-17977: Policy bypass in Google Chrome
Description
A policy bypass vulnerability in CSS within Google Chrome prior to version 151.0.7922.72 allows a remote attacker to leak cross-origin data by using a crafted HTML page. The issue has been assigned a low severity by Chromium security. The vulnerability affects Chrome versions before 151.0.7922.72. There is a vendor advisory available but no explicit patch or remediation level stated in the provided data.
Affected software
pkg:github/chromium/chromiumRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-17977 describes a policy bypass vulnerability in the CSS implementation of Google Chrome that enables remote attackers to leak cross-origin data via a specially crafted HTML page. This vulnerability affects Chrome versions prior to 151.0.7922.72. The Chromium security team has rated this issue as low severity. While a vendor advisory URL is provided, it does not explicitly confirm the patch status or remediation level in the given data.
Potential Impact
The vulnerability allows remote attackers to bypass CSS policy restrictions and leak data across origins, potentially exposing sensitive information from other web origins. The impact is considered low severity by the Chromium security team, indicating limited risk or exploitability.
Mitigation Recommendations
Check the vendor advisory at https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_0887107924.html for the latest remediation guidance. Since the vulnerability affects versions prior to 151.0.7922.72, updating to version 151.0.7922.72 or later is recommended if confirmed by the vendor advisory. Patch status is not yet confirmed from the provided data; verify current remediation status from the official Google Chrome release notes.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-07-27T23:37:11.837Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_0887107924.html","vendor":"Google"}]
Threat ID: 6a6aa0ad9c2644c7f849bd29
Added to database: 07/30/2026, 00:54:05 UTC
Last enriched: 07/30/2026, 01:39:03 UTC
Last updated: 07/30/2026, 02:03:42 UTC
Views: 3
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