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CVE-2026-113270: Use after free in Internals in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to execute arbit

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CRITICAL 9.6UPGRADE

CVE-2026-113270 is a critical-severity flaw (CVSS 9.6) affecting chrome. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Use after free in Internals in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Medium)

Why this priority

  • Critical severity

A fixed release or distro patch exists.

Risk facts

CVSS score9.6 (Critical)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededNone
User interactionRequired
EPSS exploit chance0.5% (top 58%)
CISA exploited listNo
WeaknessCWE-416
Published2026-10-20
Last modified2026-10-22
Publisher (CNA): Chrome · Vendor: google

Am I affected?

Timeline

google chrome UPGRADE
Affected: < 156.0.8078.47
Fixed in: 156.0.8078.47
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy chrome || rpm -q chrome || chrome --version
2. UPGRADE to 156.0.8078.47 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade chrome
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade chrome
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Exact fixes by distribution

Fedora 46 · uv · FIXED · 0.13.5-1.fc46 · FEDORA-2026-61ea5a28c6 · source
sudo dnf upgrade --advisory=FEDORA-2026-61ea5a28c6
Ubuntu 22.04 · chromium-browser · NOT AFFECTED
Ubuntu 24.04 · chromium-browser · NOT AFFECTED
Debian 12 · chromium · FIXED · 156.0.8078.47-1~deb12u1
sudo apt update && sudo apt install --only-upgrade chromium dpkg --compare-versions "$(dpkg-query -W -f='${Version}' chromium)" ge "156.0.8078.47-1~deb12u1" && echo PATCHED || echo STILL-VULNERABLE
Debian 13 · chromium · FIXED · 156.0.8078.47-1~deb13u1
sudo apt update && sudo apt install --only-upgrade chromium dpkg --compare-versions "$(dpkg-query -W -f='${Version}' chromium)" ge "156.0.8078.47-1~deb13u1" && echo PATCHED || echo STILL-VULNERABLE
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Related CVEs

References

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