CVE-2026-17870: Insufficient validation of untrusted input in Google Chrome
CVE-2026-17870 is a medium severity vulnerability in Google Chrome prior to version 151.0.7922.72. It involves insufficient validation of untrusted input in the Cast component, which could allow an attacker on the local network segment to leak cross-origin data via malicious network traffic. This vulnerability does not allow privilege escalation or denial of service but impacts confidentiality. No known exploits are reported in the wild. The vendor has published an advisory but has not explicitly stated the remediation status in the provided data.
AI Analysis
Technical Summary
This vulnerability in Google Chrome's Cast feature arises from insufficient validation of untrusted input. An attacker positioned on the same local network segment could exploit this flaw to leak cross-origin data by sending malicious network traffic. The issue affects versions prior to 151.0.7922.72. The CVSS v3.1 base score is 4.3, reflecting a medium severity with local network attack vector, low attack complexity, no privileges required, no user interaction, unchanged scope, and impact limited to confidentiality loss.
Potential Impact
An attacker on the local network segment can leak cross-origin data, potentially exposing sensitive information. There is no impact on integrity or availability. The vulnerability is limited to confidentiality exposure and does not allow code execution or privilege escalation.
Mitigation Recommendations
The vendor has released a stable channel update for desktop Chrome as referenced in the advisory URL. Users should update to version 151.0.7922.72 or later to remediate this vulnerability. Patch status is not explicitly confirmed in the provided data; therefore, users should consult the vendor advisory for the latest remediation guidance.
CVE-2026-17870: Insufficient validation of untrusted input in Google Chrome
Description
CVE-2026-17870 is a medium severity vulnerability in Google Chrome prior to version 151.0.7922.72. It involves insufficient validation of untrusted input in the Cast component, which could allow an attacker on the local network segment to leak cross-origin data via malicious network traffic. This vulnerability does not allow privilege escalation or denial of service but impacts confidentiality. No known exploits are reported in the wild. The vendor has published an advisory but has not explicitly stated the remediation status in the provided data.
CVSS v3.1
Score 4.3medium
Affected software
Chrome
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Google Chrome's Cast feature arises from insufficient validation of untrusted input. An attacker positioned on the same local network segment could exploit this flaw to leak cross-origin data by sending malicious network traffic. The issue affects versions prior to 151.0.7922.72. The CVSS v3.1 base score is 4.3, reflecting a medium severity with local network attack vector, low attack complexity, no privileges required, no user interaction, unchanged scope, and impact limited to confidentiality loss.
Potential Impact
An attacker on the local network segment can leak cross-origin data, potentially exposing sensitive information. There is no impact on integrity or availability. The vulnerability is limited to confidentiality exposure and does not allow code execution or privilege escalation.
Mitigation Recommendations
The vendor has released a stable channel update for desktop Chrome as referenced in the advisory URL. Users should update to version 151.0.7922.72 or later to remediate this vulnerability. Patch status is not explicitly confirmed in the provided data; therefore, users should consult the vendor advisory for the latest remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-07-27T23:35:08.541Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_0887107924.html","vendor":"Google"}]
Threat ID: 6a6aa09e9c2644c7f849b7ba
Added to database: 07/30/2026, 00:53:50 UTC
Last enriched: 08/06/2026, 17:22:40 UTC
Last updated: 09/10/2026, 19:58:43 UTC
Views: 64
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