Improper certificate validation in CORS in Google Chrome prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to bypass… (CVE-2026-87551)
Google Chrome versions prior to 153.0.8010.36 contain a vulnerability involving improper certificate validation in CORS. This flaw allows a remote attacker, using social engineering and crafted network traffic, to bypass the web origin policy. The Chromium project rates the severity of this issue as low.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-87551) affects Google Chrome before version 153.0.8010.36. It involves improper validation of certificates in the Cross-Origin Resource Sharing (CORS) mechanism. An attacker can exploit this by leveraging social engineering techniques combined with crafted network traffic to bypass the web origin policy, potentially allowing unauthorized cross-origin interactions. The issue is classified under CWE-295 (Improper Certificate Validation). No CVSS score is provided, and no known exploits are reported in the wild.
Potential Impact
The impact is limited to bypassing the web origin policy through improper certificate validation in CORS. This could allow an attacker to circumvent browser security restrictions designed to isolate web origins. The Chromium project rates this vulnerability as low severity, indicating limited risk or difficulty in exploitation.
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. No additional mitigation steps are indicated by the vendor advisory.
Improper certificate validation in CORS in Google Chrome prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to bypass… (CVE-2026-87551)
Description
Google Chrome versions prior to 153.0.8010.36 contain a vulnerability involving improper certificate validation in CORS. This flaw allows a remote attacker, using social engineering and crafted network traffic, to bypass the web origin policy. The Chromium project rates the severity of this issue as low.
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
This vulnerability (CVE-2026-87551) affects Google Chrome before version 153.0.8010.36. It involves improper validation of certificates in the Cross-Origin Resource Sharing (CORS) mechanism. An attacker can exploit this by leveraging social engineering techniques combined with crafted network traffic to bypass the web origin policy, potentially allowing unauthorized cross-origin interactions. The issue is classified under CWE-295 (Improper Certificate Validation). No CVSS score is provided, and no known exploits are reported in the wild.
Potential Impact
The impact is limited to bypassing the web origin policy through improper certificate validation in CORS. This could allow an attacker to circumvent browser security restrictions designed to isolate web origins. The Chromium project rates this vulnerability as low severity, indicating limited risk or difficulty in exploitation.
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. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-738x-v3c2-2wpw
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-87551"]
- Ecosystems
- []
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6aa15f92acd9273b49618b97
Added to database: 09/09/2026, 13:30:58 UTC
Last enriched: 09/09/2026, 14:12:05 UTC
Last updated: 09/09/2026, 18:52:00 UTC
Views: 2
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