CVE-2026-79238: Incorrect authorization in Google Chrome
Description
CVE-2026-79238 is a medium severity vulnerability in Google Chrome's ServiceWorker component prior to version 152.0.7977.65. It allows a remote attacker, using social engineering and a crafted Chrome extension, to bypass the web origin policy due to incorrect authorization. This could lead to limited confidentiality impact without affecting integrity or availability.
CVSS v3.1
Score 4.3medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves incorrect authorization in the ServiceWorker feature of Google Chrome versions before 152.0.7977.65. An attacker can exploit this flaw by leveraging social engineering to convince a user to install a malicious Chrome extension, which then bypasses the web origin policy. The CVSS 3.1 base score is 4.3 (medium), indicating a network attack vector with low complexity, no privileges required, but user interaction is needed. The impact is limited to confidentiality loss with no integrity or availability impact.
Potential Impact
The vulnerability allows bypassing the web origin policy, potentially exposing some confidential information accessible via ServiceWorker. However, it does not impact integrity or availability. Exploitation requires user interaction through social engineering to install a crafted extension. There are no known exploits in the wild at this time.
Mitigation Recommendations
A fixed version of Google Chrome (152.0.7977.65 or later) addresses this vulnerability. Users and administrators should update to this version or later to remediate the issue. No other mitigation steps are indicated.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-fv55-2p8j-mhm4
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-79238"]
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a91a876acd9273b49069d44
Added to database: 08/28/2026, 15:25:42 UTC
Last enriched: 09/18/2026, 01:59:35 UTC
Last updated: 10/12/2026, 18:48:23 UTC
Views: 62
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