Google Chrome for iOS: Information disclosure in Autofill
Summary
Google Chrome for iOS before 155.0.8059.39 contains an incomplete cleanup issue (CWE-459) in Autofill. A remote attacker who lures a user to a crafted HTML page can obtain sensitive information. The attack requires social engineering to get the victim to open the page.
Affected
- Google Chrome for iOS before 155.0.8059.39
Fixed in
- 155.0.8059.39 according to the CVE record. The iOS build number is unconfirmed: one source reports 155.0.8059.37 on iOS, so the installed version must be verified.
Workaround
- No vendor workaround confirmed.
- Interim option: restrict Autofill of addresses and payment data via MDM on managed iOS devices until the installed build is confirmed.
Exploitation
- Not listed in CISA KEV. CISA SSVC: exploitation none, not automatable.
- No public proof of concept found in the sources reviewed.
Our recommendation
- Update Chrome on all iOS devices to the latest version, at least 155.0.8059.39, and confirm the installed build.
- On devices that used the browser before updating, check that Autofill data is cleared in Chrome settings.
- Verify auto-updates on managed devices and check the NVD record for changes.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Chrome Releases: Stable Channel Update for Desktop chromereleases.googleblog.com
- Chromium issue tracker entry issues.chromium.org
- OpenCVE: CVE-2026-106203 app.opencve.io
- OSV: DEBIAN-CVE-2026-106203 osv.dev
- Strix: CVE-2026-106203 www.strix.ai
- GitHub issue 1279 (CVE tracker) github.com
- gHacks: Google releases Chrome 155 with security fixes www.ghacks.net
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 31 Oct 2026, 22:13.
Original description (NVD)
Incomplete cleanup in Autofill in Google Chrome on on iOS prior to 155.0.8059.39 allowed a remote attacker leveraging social engineering to obtain sensitive information via a crafted HTML page. (Chromium security severity: High)
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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