PatchSiren cyber security CVE debrief

CVE-2026-113185 Google CVE debrief

CVE-2026-113185 debrief based on CVE Program and NVD records. Google Chrome users should assess exposure to this memory corruption vulnerability. The vulnerability is a memory corruption issue in Extensions in Google Chrome prior to 156.0.8078.47, which allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. Chrome users should verify Chrome is updated to 156.0.8078.47 or later and assess exposure. This memory corruption vulnerability can occur in Extensions, and remote attackers may execute arbitrary code inside the sandbox.

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

Google Chrome users, particularly those with Chrome versions prior to 156.0.8078.47, should assess exposure and verify Chrome is updated to 156.0.8078.47 or later. Chrome users should review compensating controls for exposed systems while remediation is scheduled and verified. Chrome users should check relevant monitoring, detection, and logs for exposed assets that need extra review.

Why it matters

CVE-2026-113185 is a memory corruption vulnerability in Google Chrome prior to 156.0.8078.47, allowing remote attackers to execute arbitrary code inside the sandbox. Chrome users should assess exposure and verify Chrome is updated.

Remote attackers may execute arbitrary code inside the sandbox
Memory corruption can occur in Extensions

Technical summary

Memory corruption in Extensions 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. The vulnerability is a memory corruption issue in Extensions in Google Chrome prior to 156.0.8078.47. Chrome users should assess exposure and verify Chrome is updated to 156.0.8078.47 or later. This vulnerability can occur in Extensions, and remote attackers may execute arbitrary code inside the sandbox. The CVE record was published on 2026-10-20T21:02:17.293Z and has not been modified since then.

Defensive priority

Medium

Recommended defensive actions

Assess exposure to CVE-2026-113185 by checking Chrome versions prior to 156.0.8078.47
Verify Chrome is updated to 156.0.8078.47 or later
Monitor Chrome release notes 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

Official CVE Program and NVD records indicate a memory corruption vulnerability in Google Chrome prior to 156.0.8078.47. The CVE record was published on 2026-10-20T21:02:17.293Z and has not been modified since then. The vulnerability is a memory corruption issue in Extensions in Google Chrome prior to 156.0.8078.47, which allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. Chrome users should assess exposure and verify Chrome is updated.

Sources and references

Verified primary and authoritative sources

CVE-2026-113185 CVE Program record
Publisher, destination, and source semantics verified

URL: https://www.cve.org/CVERecord?id=CVE-2026-113185

CVE Program - Official CVE Program record with source-provided CVE metadata.
CVE-2026-113185 NVD vulnerability detail
Publisher, destination, and source semantics verified

URL: https://nvd.nist.gov/vuln/detail/CVE-2026-113185

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

Supplemental references

CVE-2026-113185
Unverified legacy reference

URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/113xxx/CVE-2026-113185.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/517461056

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.