Google Chrome: Use after free in Passwords component
Summary
Google Chrome before 155.0.8059.79 contains a use-after-free flaw in the Passwords component. An attacker who has already compromised the renderer process can use a crafted HTML page to execute code outside the browser sandbox. The flaw is a sandbox-escape stage in an attack chain, not a standalone remote vulnerability, and it requires user interaction.
Affected
- Google Chrome desktop (Windows, macOS, Linux) before 155.0.8059.79
- Other Chromium-based browsers, such as Edge or Brave, must be checked against their own vendor releases
Fixed in
- Google Chrome 155.0.8059.79 (Linux) and 155.0.8059.79/.80 (Windows, macOS), per Google's Stable Channel Update of 13 October 2026 as reported by secondary sources
- Debian chromium 155.0.8059.79-1~deb12u1 (bookworm) and 155.0.8059.79-1~deb13u1 (trixie)
- Newer stable builds exist; verify the current version on Google's channel page
Workaround
None documented. Updating is the only documented fix.
Exploitation
- No evidence of exploitation in the wild found; CISA SSVC lists exploitation as none
- No public proof of concept found; Google restricts detailed technical information until most users are patched
- Reported by Xinyang Ge on 16 September 2026
Our recommendation
- Update Google Chrome on all desktops to the current stable version and verify each device
- Check Edge and other Chromium-based browsers for their own patches
- On managed fleets, consider restricting the built-in password manager by policy until patching is verified
- Monitor vendor advisories for changes in exploitation status
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
- Debian/OSV osv.dev
- Ubuntu security notice ubuntu.com
- CyberSecurityNews cybersecuritynews.com
- Mallory mallory.ai
- gHacks: Chrome 155 security fixes www.ghacks.net
- NVD mirror (threatint) cve.threatint.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 1 Nov 2026, 13:48.
Original description (NVD)
Use after free in Passwords in Google Chrome prior to 155.0.8059.79 allowed a remote attacker who had compromised the renderer process to execute arbitrary code outside the sandbox 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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