Improper certificate validation in FedCM in Google Chrome prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to bypass… (CVE-2026-87608)
A vulnerability in Google Chrome's FedCM feature prior to version 153.0.8010.36 allows a remote attacker to bypass the web origin policy by exploiting improper certificate validation combined with social engineering. The issue is classified with low severity by Chromium security. No CVSS score or known exploits in the wild are reported.
AI Analysis
Technical Summary
CVE-2026-87608 describes an improper certificate validation vulnerability in the FedCM component of Google Chrome versions before 153.0.8010.36. This flaw enables a remote attacker, using social engineering tactics, to bypass the web origin policy through crafted network traffic. The vulnerability is related to CWE-295 (Improper Certificate Validation). No detailed exploit techniques or impact beyond the bypass of web origin policy are provided.
Potential Impact
The vulnerability allows bypassing the web origin policy, which could undermine the security model that isolates web content from different origins. However, the severity is rated low by Chromium security, indicating limited impact or difficulty in exploitation. There are no known active exploits in the wild.
Mitigation Recommendations
A fix is available in Google Chrome version 153.0.8010.36 and later. Users and administrators should update to this version or newer to remediate the vulnerability. Since this is not a cloud service, remediation depends on applying the browser update. No additional vendor advisory content is provided to indicate alternative mitigations or if no action is required.
Improper certificate validation in FedCM in Google Chrome prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to bypass… (CVE-2026-87608)
Description
A vulnerability in Google Chrome's FedCM feature prior to version 153.0.8010.36 allows a remote attacker to bypass the web origin policy by exploiting improper certificate validation combined with social engineering. The issue is classified with low severity by Chromium security. No CVSS score or known exploits in the wild are reported.
Affected software
pkg:github/chromium/chromiumRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-87608 describes an improper certificate validation vulnerability in the FedCM component of Google Chrome versions before 153.0.8010.36. This flaw enables a remote attacker, using social engineering tactics, to bypass the web origin policy through crafted network traffic. The vulnerability is related to CWE-295 (Improper Certificate Validation). No detailed exploit techniques or impact beyond the bypass of web origin policy are provided.
Potential Impact
The vulnerability allows bypassing the web origin policy, which could undermine the security model that isolates web content from different origins. However, the severity is rated low by Chromium security, indicating limited impact or difficulty in exploitation. There are no known active exploits in the wild.
Mitigation Recommendations
A fix is available in Google Chrome version 153.0.8010.36 and later. Users and administrators should update to this version or newer to remediate the vulnerability. Since this is not a cloud service, remediation depends on applying the browser update. No additional vendor advisory content is provided to indicate alternative mitigations or if no action is required.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-vmwr-6hc4-r546
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-87608"]
- Ecosystems
- []
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6aa15f90acd9273b49618a51
Added to database: 09/09/2026, 13:30:56 UTC
Last enriched: 09/09/2026, 14:05:12 UTC
Last updated: 09/09/2026, 22:52:15 UTC
Views: 2
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