Google Chrome: Memory corruption in Permissions component
Summary
A memory corruption flaw in the Permissions component of Google Chrome before 156.0.8078.47 can be triggered remotely. A user who visits a crafted HTML page may allow an attacker to potentially execute arbitrary code outside the browser sandbox. NVD rates the issue Critical (CVSS 9.6), while Google rates the Chromium security severity as Medium; no authentication is needed, but user interaction is required.
Affected
- Google Chrome before 156.0.8078.47
- The official CVE record lists an inconsistent version range, so the exact affected builds per platform are unknown.
Fixed in
- Google Chrome 156.0.8078.47 according to the CVE description.
- Secondary coverage reports 156.0.8078.48 for Windows and macOS. Confirm the exact build in the Chrome Releases post.
Workaround
- Unknown. No workaround is documented; update Chrome.
Exploitation
- No known exploitation in the wild at the time of research.
- Not listed in CISA KEV.
- CISA SSVC assessment: exploitation none, not automatable, total technical impact.
- No public proof-of-concept found.
Our recommendation
- Update Chrome on all endpoints to 156.0.8078.47 or later, and to .48 or later on Windows and macOS if confirmed by the vendor.
- Restart the browser after the update so the new version takes effect.
- Check mobile Chrome builds separately.
- Monitor CISA KEV and the Chromium bug tracker for status 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 entry 553394270 issues.chromium.org
- GitHub Security Advisory GHSA-mrr9-4cc7-jxfm github.com
- Vulners CVE record CVE-2026-113007 vulners.com
- WindowsForum: Chrome 156 security update windowsforum.com
- HKCERT security bulletin (Microsoft Edge, Chromium-based) www.hkcert.org
- VulDB entry 423070 vuldb.com
- GitHub issue astruzocyber/CVE 2684 (CISA KEV status) github.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 30 Oct 2026, 22:42.
Original description (NVD)
Memory corruption in Permissions in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to potentially execute arbitrary code outside the sandbox 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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