Observable discrepancy in Network in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to obtain cross-origin data via a crafted HTML… (CVE-2026-87539)
A vulnerability in Google Chrome prior to version 153.0.8010.36 allows a remote attacker to obtain cross-origin data by exploiting an observable discrepancy in the network handling of crafted HTML pages. This issue is classified with medium severity by the Chromium security team. No CVSS score or patch information is currently available.
AI Analysis
Technical Summary
CVE-2026-87539 describes an observable discrepancy in the network component of Google Chrome versions before 153.0.8010.36. This flaw enables a remote attacker to retrieve cross-origin data through a specially crafted HTML page, violating the same-origin policy. The vulnerability is categorized under CWE-203 (Observable Discrepancy). No detailed technical exploitation methods or impact beyond data disclosure are provided in the available data.
Potential Impact
The vulnerability allows unauthorized access to cross-origin data, potentially exposing sensitive information from other origins within the browser context. The impact is limited to data disclosure without further details on escalation or system compromise.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Users and administrators should monitor official Google Chrome security advisories for updates and apply any forthcoming patches promptly.
Observable discrepancy in Network in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to obtain cross-origin data via a crafted HTML… (CVE-2026-87539)
Description
A vulnerability in Google Chrome prior to version 153.0.8010.36 allows a remote attacker to obtain cross-origin data by exploiting an observable discrepancy in the network handling of crafted HTML pages. This issue is classified with medium severity by the Chromium security team. No CVSS score or patch information is currently available.
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-2026-87539 describes an observable discrepancy in the network component of Google Chrome versions before 153.0.8010.36. This flaw enables a remote attacker to retrieve cross-origin data through a specially crafted HTML page, violating the same-origin policy. The vulnerability is categorized under CWE-203 (Observable Discrepancy). No detailed technical exploitation methods or impact beyond data disclosure are provided in the available data.
Potential Impact
The vulnerability allows unauthorized access to cross-origin data, potentially exposing sensitive information from other origins within the browser context. The impact is limited to data disclosure without further details on escalation or system compromise.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Users and administrators should monitor official Google Chrome security advisories for updates and apply any forthcoming patches promptly.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-6g56-3875-jfjp
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-87539"]
- Ecosystems
- []
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6aa15f94acd9273b49618c01
Added to database: 09/09/2026, 13:31:00 UTC
Last enriched: 09/09/2026, 14:14:11 UTC
Last updated: 09/09/2026, 23:52:00 UTC
Views: 3
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