Google Chrome: Use after free in Passwords enables code execution outside sandbox
Summary
Google Chrome contains a use-after-free flaw (CWE-416) in its Passwords component. A remote attacker who has already compromised the renderer process can execute arbitrary code outside the sandbox by luring a user to a crafted HTML page. The attack requires user interaction and a prior renderer compromise, and the attack complexity is high. The CVE description and the Chromium tracker describe the bug differently, so the exact attack chain should be verified.
Affected
- Google Chrome prior to 155.0.8059.79 (per the CVE description; the CNA record's version range is inconsistent and should be verified)
- Android builds of Chrome: a 155.0.8059.79 build was also released, per secondary sources
- Linux distributions: Debian is affected (bookworm package); Ubuntu lists its chromium-browser package as not affected because it installs the Chromium snap
Fixed in
- Google Chrome 155.0.8059.79 (Windows and macOS 155.0.8059.79/.80 per secondary sources; Linux 155.0.8059.79), released 13 October 2026 as part of a Stable channel update
- Debian: 155.0.8059.79-1~deb12u1 for bookworm
- Ubuntu: refresh the Chromium snap
- Version numbers are taken from secondary sources and have not been verified against the vendor page
Workaround
No vendor-documented workaround known. Install the update.
Exploitation
- Not known to be exploited (per OffSeq; CISA KEV listing not confirmed in primary sources)
- CISA SSVC assessment in the CVE record: Exploitation none, Automatable no, Technical Impact total
- No public proof of concept found
- EPSS is low (roughly 0.2% to 0.32%, indicative only)
Our recommendation
- Inventory Chrome versions on Windows, macOS, Linux and Android and flag anything below 155.0.8059.79
- Deploy the 13 October 2026 Stable release or later across all workstations and phones with Chrome installed
- Enforce a browser restart so the update takes effect
- Update Chromium snaps or distribution packages on Linux
- Check the NVD entry and the Google advisory directly before finalising this record
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
- Ubuntu security notice CVE-2026-110158 ubuntu.com
- OSV entry DEBIAN-CVE-2026-110158 osv.dev
- Malwarebytes: Chrome update fixes 37 security flaws www.malwarebytes.com
- Chrome releases listing (releases.sh) releases.sh
- OffSeq Radar threat entry radar.offseq.com
- Chrome 155 security update guidance (Affixcenter) affixcenter.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, 13:47.
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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