CVE-2026-5876: Side-channel information leakage in Google Chrome
Side-channel information leakage in Navigation in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)
AI Analysis
Technical Summary
This vulnerability involves side-channel information leakage in the navigation component of Google Chrome before version 147.0.7727.55. A remote attacker can exploit this by crafting an HTML page that leaks data across origins, potentially exposing sensitive information. The issue is categorized as medium severity by Chromium security. The vulnerability is published with no CVSS score or explicit remediation level indicated. The vendor advisory is referenced but does not confirm patch availability in the provided data.
Potential Impact
The impact is limited to information leakage of cross-origin data via a side-channel attack. This could allow an attacker to obtain sensitive information from other origins within the browser context. There are no reports of active exploitation in the wild. The severity is medium, indicating moderate risk but not critical compromise or remote code execution.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory at https://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop.html for current remediation guidance. Until confirmation of a fix, users should consider updating to the latest Chrome version once available. No specific mitigation steps are provided in the advisory content.
CVE-2026-5876: Side-channel information leakage in Google Chrome
Description
Side-channel information leakage in Navigation in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves side-channel information leakage in the navigation component of Google Chrome before version 147.0.7727.55. A remote attacker can exploit this by crafting an HTML page that leaks data across origins, potentially exposing sensitive information. The issue is categorized as medium severity by Chromium security. The vulnerability is published with no CVSS score or explicit remediation level indicated. The vendor advisory is referenced but does not confirm patch availability in the provided data.
Potential Impact
The impact is limited to information leakage of cross-origin data via a side-channel attack. This could allow an attacker to obtain sensitive information from other origins within the browser context. There are no reports of active exploitation in the wild. The severity is medium, indicating moderate risk but not critical compromise or remote code execution.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory at https://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop.html for current remediation guidance. Until confirmation of a fix, users should consider updating to the latest Chrome version once available. No specific mitigation steps are provided in the advisory content.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-04-08T19:34:36.637Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop.html","vendor":"Google"}]
Threat ID: 69d6ca391cc7ad14dab3cbcf
Added to database: 4/8/2026, 9:35:53 PM
Last enriched: 4/8/2026, 10:08:11 PM
Last updated: 4/9/2026, 8:00:42 AM
Views: 6
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.