Information leak in ServiceWorker in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to obtain cross-origin data via a crafted HTML… (CVE-2026-87574)
An information leak vulnerability exists in the ServiceWorker component of Google Chrome versions prior to 153.0.8010.36. This flaw allows a remote attacker to obtain cross-origin data by leveraging a crafted HTML page. The vulnerability is classified with medium severity by the Chromium security team. No public exploits are known, and no patch information is provided in the available data.
AI Analysis
Technical Summary
CVE-2026-87574 is an information disclosure vulnerability in the ServiceWorker implementation of Google Chrome before version 153.0.8010.36. It enables a remote attacker to access data from other origins by exploiting a crafted HTML page, violating the same-origin policy. The vulnerability is identified as CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor). There is no CVSS score or detailed vendor advisory available in the provided data, and no explicit patch or remediation status is stated.
Potential Impact
The vulnerability allows unauthorized disclosure of cross-origin data, potentially exposing sensitive information to remote attackers. This could undermine user privacy and security by leaking data that should be isolated by browser security policies. However, the severity is rated medium, indicating the impact is significant but not critical.
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 official fix once available. Until then, cautious browsing and limiting exposure to untrusted web content may reduce risk.
Information leak in ServiceWorker in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to obtain cross-origin data via a crafted HTML… (CVE-2026-87574)
Description
An information leak vulnerability exists in the ServiceWorker component of Google Chrome versions prior to 153.0.8010.36. This flaw allows a remote attacker to obtain cross-origin data by leveraging a crafted HTML page. The vulnerability is classified with medium severity by the Chromium security team. No public exploits are known, and no patch information is provided in the available 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.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-87574 is an information disclosure vulnerability in the ServiceWorker implementation of Google Chrome before version 153.0.8010.36. It enables a remote attacker to access data from other origins by exploiting a crafted HTML page, violating the same-origin policy. The vulnerability is identified as CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor). There is no CVSS score or detailed vendor advisory available in the provided data, and no explicit patch or remediation status is stated.
Potential Impact
The vulnerability allows unauthorized disclosure of cross-origin data, potentially exposing sensitive information to remote attackers. This could undermine user privacy and security by leaking data that should be isolated by browser security policies. However, the severity is rated medium, indicating the impact is significant but not critical.
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 official fix once available. Until then, cautious browsing and limiting exposure to untrusted web content may reduce risk.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-c4hv-pjg2-qwqx
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-87574"]
- Ecosystems
- []
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6aa15f91acd9273b49618ae9
Added to database: 09/09/2026, 13:30:57 UTC
Last enriched: 09/09/2026, 14:08:56 UTC
Last updated: 09/09/2026, 20:52:00 UTC
Views: 2
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