PatchSiren cyber security CVE debrief
CVE-2026-113206 Google CVE debrief
A memory corruption vulnerability in Google Chrome's Omnibox, prior to version 156.0.8078.47, allows remote attackers to execute arbitrary code within the sandbox via a crafted HTML page. This issue, tracked as CVE-2026-113206, was publicly disclosed on October 20, 2026. The vulnerability exists due to improper handling of certain HTML elements, leading to memory corruption and potential code execution. Defenders should assess and mitigate this vulnerability to prevent potential exploitation.
- Vendor
- 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 installations, particularly in environments where exposure to untrusted web content is possible, should assess and mitigate this vulnerability. This includes IT administrators, security teams, and operators responsible for maintaining Chrome installations. They should prioritize patching vulnerable installations to prevent potential exploitation and review compensating controls for exposed systems.
Why it matters
CVE-2026-113206 is a memory corruption vulnerability in Google Chrome's Omnibox that allows remote attackers to execute arbitrary code within the sandbox. Defenders should prioritize patching vulnerable installations to prevent potential exploitation.
- Potential for remote code execution within the sandbox
- Need for patching vulnerable Chrome installations
- Monitoring for exploitation attempts
Technical summary
The vulnerability exists in Google Chrome's Omnibox and allows remote attackers to execute arbitrary code within the sandbox via a crafted HTML page. This issue was addressed in Chrome version 156.0.8078.47. The vulnerability is caused by improper handling of certain HTML elements, leading to memory corruption and potential code execution. Defenders should prioritize patching vulnerable Chrome installations to prevent potential code execution within the sandbox. The official advisory and CVE record provide additional information on the vulnerability and its impact.
Defensive priority
Defenders should prioritize patching vulnerable Chrome installations to prevent potential code execution within the sandbox.
Recommended defensive actions
- Patch Chrome installations to version 156.0.8078.47 or later
- Verify and apply updates for Google Chrome
- Monitor for potential exploitation attempts
- 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 source item provide details on the vulnerability, including its existence in Chrome versions prior to 156.0.8078.47 and the potential for remote code execution within the sandbox. The official CVE Program record and NIST NVD detail page offer additional information on the vulnerability and its impact. Defenders should verify the affected scope and apply patches to mitigate the vulnerability.
Sources and references
Verified primary and authoritative sources
-
CVE-2026-113206 CVE Program record
Publisher, destination, and source semantics verified
URL: https://www.cve.org/CVERecord?id=CVE-2026-113206
CVE Program - Official CVE Program record with source-provided CVE metadata.
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CVE-2026-113206 NVD vulnerability detail
Publisher, destination, and source semantics verified
URL: https://nvd.nist.gov/vuln/detail/CVE-2026-113206
NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.
Supplemental references
-
CVE-2026-113206
Unverified legacy reference
URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/113xxx/CVE-2026-113206.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/517407917
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.