Google Chrome: Use after free in WebAudio allows sandboxed code execution
Summary
Google Chrome before 155.0.8059.39 contains a use-after-free vulnerability in the WebAudio component. A remote attacker can execute arbitrary code inside the browser sandbox by luring a user to a crafted HTML page. Exploitation requires that the victim opens the page and the browser is not updated; the sandbox limits the impact, so full system compromise would require a second flaw.
Affected
- Google Chrome prior to 155.0.8059.39
- Chromium-based browsers that ingest these fixes, such as Microsoft Edge, depend on their own vendor builds (verify on the MSRC entry)
Fixed in
- Google Chrome 155.0.8059.39 or later (Windows and Mac: 155.0.8059.39/.40 per Google's release notes; a newer Stable build is recommended)
- Debian chromium: 155.0.8059.39-1~deb12u1 for Debian 12
Workaround
- Unknown. No vendor-documented mitigation beyond patching was found.
Exploitation
- Exploited in the wild: no evidence found. Check the CISA KEV catalog directly.
- Public proof of concept: none found.
- CISA SSVC: Exploitation none, Automatable no, Technical Impact total.
Our recommendation
- Update Google Chrome to the newest Stable release and restart the browser, since updates apply only after a relaunch.
- Update Chromium-based browsers such as Microsoft Edge according to their vendor advisories.
- Verify the deployed browser version on all workstations rather than assuming auto-update worked.
- Prioritise unmanaged or outdated browsers and remind users not to open untrusted links.
- Monitor the CISA KEV catalog 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
- OSV: DEBIAN-CVE-2026-106235 osv.dev
- Tenable plugin 366658 www.tenable.com
- Malwarebytes: Update Chrome and ChromeOS www.malwarebytes.com
- Google Chrome Extended Stable channel support support.google.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, 22:06.
Original description (NVD)
Use after free in WebAudio in Google Chrome prior to 155.0.8059.39 allowed a remote attacker to execute arbitrary code inside 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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