CVE-2026-13889: Insufficient validation of untrusted input in Google Chrome
CVE-2026-13889 is a medium severity vulnerability in Google Chrome on iOS prior to version 150.0.7871.47. It involves insufficient validation of untrusted input in the WebAuthentication component, which allows a remote attacker to leak cross-origin data via a crafted HTML page. This side-channel information leakage could expose sensitive data across origins. The vulnerability affects Chrome on iOS and was addressed in version 150.0.7871.47.
AI Analysis
Technical Summary
This vulnerability in Google Chrome on iOS versions before 150.0.7871.47 stems from insufficient validation of untrusted input in the WebAuthentication API. Exploiting this flaw, a remote attacker can craft an HTML page that triggers a side-channel information leak, allowing cross-origin data to be exposed. The issue was publicly disclosed and fixed in Chrome version 150.0.7871.47. No CVSS score is provided, but the Chromium security team rates it as medium severity.
Potential Impact
An attacker can remotely leak cross-origin data through a side-channel attack on the WebAuthentication API in affected Chrome versions on iOS. This could lead to unauthorized disclosure of sensitive information from other origins within the browser context. There are no known exploits in the wild at this time.
Mitigation Recommendations
Users should update Google Chrome on iOS to version 150.0.7871.47 or later to remediate this vulnerability. No additional mitigation steps are indicated by the vendor advisory. Patch status is confirmed by the vendor advisory linked.
CVE-2026-13889: Insufficient validation of untrusted input in Google Chrome
Description
CVE-2026-13889 is a medium severity vulnerability in Google Chrome on iOS prior to version 150.0.7871.47. It involves insufficient validation of untrusted input in the WebAuthentication component, which allows a remote attacker to leak cross-origin data via a crafted HTML page. This side-channel information leakage could expose sensitive data across origins. The vulnerability affects Chrome on iOS and was addressed in version 150.0.7871.47.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Google Chrome on iOS versions before 150.0.7871.47 stems from insufficient validation of untrusted input in the WebAuthentication API. Exploiting this flaw, a remote attacker can craft an HTML page that triggers a side-channel information leak, allowing cross-origin data to be exposed. The issue was publicly disclosed and fixed in Chrome version 150.0.7871.47. No CVSS score is provided, but the Chromium security team rates it as medium severity.
Potential Impact
An attacker can remotely leak cross-origin data through a side-channel attack on the WebAuthentication API in affected Chrome versions on iOS. This could lead to unauthorized disclosure of sensitive information from other origins within the browser context. There are no known exploits in the wild at this time.
Mitigation Recommendations
Users should update Google Chrome on iOS to version 150.0.7871.47 or later to remediate this vulnerability. No additional mitigation steps are indicated by the vendor advisory. Patch status is confirmed by the vendor advisory linked.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Chrome
- Date Reserved
- 2026-06-29T23:03:42.994Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0175352312.html","vendor":"Google"}]
Threat ID: 6a444c1b27e9c7971985cbe2
Added to database: 06/30/2026, 23:07:07 UTC
Last enriched: 07/01/2026, 03:23:27 UTC
Last updated: 07/01/2026, 03:23:27 UTC
Views: 2
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