Google Chrome: Information leak in Autofill
Summary
Google Chrome versions before 155.0.8059.39 contain an information leak in the Autofill feature. A remote attacker can obtain sensitive information by luring a user to a crafted HTML page. The vendor rates the issue Medium, and the NVD CVSS 3.1 base score is 8.8 (High), with the attack requiring user interaction.
Affected
- Google Chrome before 155.0.8059.39 (desktop)
- Microsoft Edge (Chromium-based): versions before 155.0.4283.62 for desktop, according to HKCERT
Fixed in
- Google Chrome 155.0.8059.39 or later (desktop, per the vendor's stable channel update of 6 October 2026)
- Microsoft Edge 155.0.4283.62 or later (desktop)
- Other Chromium-based browsers and Linux distributions: Unknown, check the respective vendor advisories
Workaround
Unknown. No vendor-documented workaround is known. As a general option, Autofill for addresses and payment methods can be restricted via Chrome enterprise policy where business needs allow; this is not verified for this CVE.
Exploitation
- CISA SSVC (CISA ADP): exploitation none, automatable no, technical impact partial
- Not listed in the CISA KEV catalog according to a third-party tracker (not verified directly)
- EPSS below 1 percent
- No public proof of concept found; the Chromium bug report is restricted
Our recommendation
- Confirm that all Chrome and Edge installations run the fixed versions, using managed update reporting
- Check the advisories of Chromium-based browsers and Linux distributions that are in use
- Prioritise the update according to the vendor's Medium rating, but roll it out quickly because browsers are internet-facing
- Monitor the Chromium tracker and the CISA KEV catalog 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 issues.chromium.org
- HKCERT security bulletin: Microsoft Edge multiple vulnerabilities www.hkcert.org
- OpenCVE: CVE-2026-106342 app.opencve.io
- Vulners: MS:CVE-2026-106342 vulners.com
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, 21:53.
Original description (NVD)
Information leak in Autofill in Google Chrome prior to 155.0.8059.39 allowed a remote attacker to obtain sensitive information via a crafted HTML page. (Chromium security severity: Medium)
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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