Insufficient validation of untrusted input in WebAuthn in Google Chrome prior to 151.0.7922.72 allowed a remote attacker who had compromised the… (CVE-2026-17990)
Insufficient validation of untrusted input in WebAuthn in Google Chrome prior to 151.0.7922.72 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted PDF file. (Chromium security severity: Low)
AI Analysis
Technical Summary
The vulnerability CVE-2026-17990 concerns insufficient validation of untrusted input in the WebAuthn component of Google Chrome versions before 151.0.7922.72. An attacker with control over the renderer process could exploit this by delivering a crafted PDF file to perform a sandbox escape, potentially increasing their privileges within the browser environment. The issue is categorized under CWE-20 (Improper Input Validation). No CVSS score is available, and no known exploits in the wild have been reported.
Potential Impact
If exploited, this vulnerability could allow an attacker who has already compromised the renderer process to escape the sandbox environment, potentially leading to further compromise of the host system. However, the overall severity is considered low by the Chromium security team, indicating limited impact or difficulty in exploitation.
Mitigation Recommendations
A fix is available in Google Chrome version 151.0.7922.72. Users and administrators should update to this version or later to remediate the vulnerability. No additional mitigation steps are indicated by the vendor advisory.
Insufficient validation of untrusted input in WebAuthn in Google Chrome prior to 151.0.7922.72 allowed a remote attacker who had compromised the… (CVE-2026-17990)
Description
Insufficient validation of untrusted input in WebAuthn in Google Chrome prior to 151.0.7922.72 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted PDF file. (Chromium security severity: Low)
CVSS v3.1
Score 9.6critical
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2026-17990 concerns insufficient validation of untrusted input in the WebAuthn component of Google Chrome versions before 151.0.7922.72. An attacker with control over the renderer process could exploit this by delivering a crafted PDF file to perform a sandbox escape, potentially increasing their privileges within the browser environment. The issue is categorized under CWE-20 (Improper Input Validation). No CVSS score is available, and no known exploits in the wild have been reported.
Potential Impact
If exploited, this vulnerability could allow an attacker who has already compromised the renderer process to escape the sandbox environment, potentially leading to further compromise of the host system. However, the overall severity is considered low by the Chromium security team, indicating limited impact or difficulty in exploitation.
Mitigation Recommendations
A fix is available in Google Chrome version 151.0.7922.72. Users and administrators should update to this version or later to remediate the vulnerability. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-vj3f-x3cj-5hwv
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-17990"]
- Ecosystems
- []
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a6ae50f9c2644c7f898003e
Added to database: 07/30/2026, 05:45:51 UTC
Last enriched: 07/30/2026, 05:53:47 UTC
Last updated: 07/31/2026, 02:51:53 UTC
Views: 5
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