Google Chrome: Use after free in Transactions Platform allows sandbox code execution
Summary
Google Chrome before 156.0.8078.47 contains a use-after-free flaw in the Transactions Platform component. A remote attacker can use a crafted HTML page to execute arbitrary code inside the browser sandbox. The attack requires that a user visits the malicious page; no authentication is needed.
Affected
- Google Chrome for Windows, macOS and Linux prior to 156.0.8078.47
- Chromium-based products that consume the Chromium fix (exact ranges unverified)
- The NVD-derived affected range is inconsistent with the CVE text; the CVE text is used here
Fixed in
- Google Chrome 156.0.8078.47 or later (Linux 156.0.8078.47; Windows and Mac 156.0.8078.47 or 156.0.8078.48 per secondary source, to be confirmed against the vendor post)
- Newer Stable builds (for example 156.0.8078.79 or later) are also available and should be preferred
- Linux distribution package versions: Unknown.
Workaround
- None. Applying the vendor update is the remedy. No mitigation is documented.
Exploitation
- No evidence of exploitation in the wild found; not listed in CISA KEV according to one source.
- No public proof of concept found. The linked Chromium bug could not be checked for access status.
- CISA SSVC: exploitation none, automatable no, technical impact total.
Our recommendation
- Update all Google Chrome and Chromium-based browsers on endpoints to 156.0.8078.47 or later, preferably the current Stable build, as a priority.
- Verify the installed version on all workstations and enforce automatic updates.
- Check Linux distribution advisories for the Chromium package, and note that Ubuntu ships Chromium as a Snap.
- Monitor vendor advisories for any new exploitation reports.
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 553117374 issues.chromium.org
- VulDB CVE entry vuldb.com
- Vulners CVE entry (CVELIST) vulners.com
- Ubuntu security notice ubuntu.com
- Vulners MSCVE entry vulners.com
- Strix CVE entry www.strix.ai
- Google Chrome (Wikipedia) en.wikipedia.org
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, 12:14.
Original description (NVD)
Use after free in Transactions Platform in Google Chrome prior to 156.0.8078.47 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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