PatchSiren cyber security CVE debrief

CVE-2026-113208 Google CVE debrief

CVE-2026-113208 debrief based on CVE Program and NVD records. Google Chrome users should assess exposure to version 156.0.8078.47 or earlier. The CVE record was published on 2026-10-20T21:02:13.254Z and has not been modified since then. This use-after-free vulnerability in ContextualSearch could allow remote attackers to execute arbitrary code inside the sandbox via a crafted HTML page. Defenders should prioritize verifying and updating Chrome to version 156.0.8078.47 or later for all users. The vulnerability's severity is classified as Medium by Chromium security. To address this issue, defenders should focus on updating Chrome to the latest version and ensuring that all users are

Vendor: Google
Product: Chrome
CVSS: Unknown
CISA KEV: Not listed in stored evidence
Original CVE published: 2026-10-20
Original CVE updated: 2026-10-20
Advisory published: 2026-10-20
Advisory updated: 2026-10-20

Who should care

Defenders responsible for managing Google Chrome deployments should assess exposure and prioritize updates. This includes IT teams handling Chrome updates, security teams monitoring vulnerability disclosures, and administrators ensuring that all Chrome instances are up-to-date. Additionally, operators and users of Google Chrome should be aware of the potential risks and take appropriate measures to protect their systems.

Why it matters

CVE-2026-113208 is a use-after-free vulnerability in ContextualSearch in Google Chrome prior to 156.0.8078.47. Defenders should prioritize verifying and updating Chrome to version 156.0.8078.47 or later for all users.

Remote attackers may execute arbitrary code inside the sandbox
Defenders must verify Chrome version 156.0.8078.47 or later for all users
Successful exploitation requires user interaction via a crafted HTML page

Technical summary

A use-after-free vulnerability exists in ContextualSearch in Google Chrome prior to 156.0.8078.47. This vulnerability could allow a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. The vulnerability's severity is classified as Medium by Chromium security. Defenders should prioritize verifying Chrome version 156.0.8078.47 or later for all users and monitor Chrome releases for future updates. The CVE record was published on 2026-10-20T21:02:13.254Z and has not been modified since then.

Defensive priority

Defenders should prioritize verifying Chrome version 156.0.8078.47 or later for all users.

Recommended defensive actions

Verify Chrome version 156.0.8078.47 or later for all users
Update Chrome to version 156.0.8078.47 or later
Monitor Chrome releases for future updates
Review compensating controls for exposed systems while remediation is scheduled and verified
Check relevant monitoring, detection, and logs for exposed assets that need extra review
Track exceptions, retest remediated assets, and close the item only after evidence is documented
Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and NVD entry provide details on the use-after-free vulnerability in ContextualSearch in Google Chrome prior to 156.0.8078.47. The vulnerability could allow a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. Defenders should verify Chrome version 156.0.8078.47 or later for all users and monitor Chrome releases for future updates. The CVE record was published on 2026-10-20T21:02:13.254Z and has not been modified since then. The information provided is based on the CVE Program and NVD

Sources and references

Verified primary and authoritative sources

CVE-2026-113208 CVE Program record
Publisher, destination, and source semantics verified

URL: https://www.cve.org/CVERecord?id=CVE-2026-113208

CVE Program - Official CVE Program record with source-provided CVE metadata.
CVE-2026-113208 NVD vulnerability detail
Publisher, destination, and source semantics verified

URL: https://nvd.nist.gov/vuln/detail/CVE-2026-113208

NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

CVE-2026-113208
Unverified legacy reference

URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/113xxx/CVE-2026-113208.json

cve_program_cvelist_v5
Source reference
Unverified legacy reference

URL: https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_02018666648.html

Supplemental source
Source reference
Unverified legacy reference

URL: https://issues.chromium.org/issues/513774784

Supplemental source

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.