Origin validation error in Paint in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to obtain cross-origin data via a crafted HTML… (CVE-2026-87563)
An origin validation error in the Paint feature of Google Chrome versions prior to 153.0.8010.36 allows a remote attacker to obtain cross-origin data by crafting a malicious HTML page. This vulnerability is classified with medium severity by Chromium security. No CVSS score or detailed vendor advisory is currently available, and no exploits are known in the wild.
AI Analysis
Technical Summary
The vulnerability identified as CVE-2026-87563 involves an origin validation error in the Paint component of Google Chrome before version 153.0.8010.36. This flaw enables a remote attacker to bypass same-origin policy restrictions and access data from other origins via a specially crafted HTML page. The issue is categorized under CWE-346 (Origin Validation Error). There is no CVSS score or patch information provided in the available data.
Potential Impact
A successful exploit could allow a remote attacker to obtain cross-origin data that should normally be restricted, potentially leading to unauthorized data disclosure. The Chromium security team rates this vulnerability as medium severity. There are no reports of active exploitation in the wild.
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 the update to version 153.0.8010.36 or later once available to remediate this vulnerability.
Origin validation error in Paint in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to obtain cross-origin data via a crafted HTML… (CVE-2026-87563)
Description
An origin validation error in the Paint feature of Google Chrome versions prior to 153.0.8010.36 allows a remote attacker to obtain cross-origin data by crafting a malicious HTML page. This vulnerability is classified with medium severity by Chromium security. No CVSS score or detailed vendor advisory is currently available, and no exploits are known in the wild.
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
The vulnerability identified as CVE-2026-87563 involves an origin validation error in the Paint component of Google Chrome before version 153.0.8010.36. This flaw enables a remote attacker to bypass same-origin policy restrictions and access data from other origins via a specially crafted HTML page. The issue is categorized under CWE-346 (Origin Validation Error). There is no CVSS score or patch information provided in the available data.
Potential Impact
A successful exploit could allow a remote attacker to obtain cross-origin data that should normally be restricted, potentially leading to unauthorized data disclosure. The Chromium security team rates this vulnerability as medium severity. There are no reports of active exploitation in the wild.
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 the update to version 153.0.8010.36 or later once available to remediate this vulnerability.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-vg7r-fpqr-4xpq
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-87563"]
- Ecosystems
- []
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6aa15f92acd9273b49618b2f
Added to database: 09/09/2026, 13:30:58 UTC
Last enriched: 09/09/2026, 14:10:26 UTC
Last updated: 09/09/2026, 20:51:59 UTC
Views: 2
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