PatchSiren cyber security CVE debrief
CVE-2026-113125 Google CVE debrief
A memory corruption vulnerability in Google Chrome's DevTools, prior to version 156.0.8078.47, allows remote attackers to execute arbitrary code within the sandbox via a crafted HTML page. The Chromium security team has assessed this vulnerability as having a Low severity. This issue is significant because it could allow attackers to execute code within the Chrome sandbox, potentially leading to further exploitation. Defenders should verify exposure, apply patches, and monitor for suspicious activity.
- Vendor
- Product
- Chrome
- CVSS
- Unknown
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-10-20
- Original CVE updated
- 2026-10-21
- Advisory published
- 2026-10-20
- Advisory updated
- 2026-10-21
Who should care
Defenders responsible for managing Google Chrome deployments, particularly in environments where users access the internet or open untrusted HTML pages, should assess exposure and apply patches.
Why it matters
This vulnerability allows remote attackers to execute arbitrary code within the Chrome sandbox via a crafted HTML page. Defenders should verify exposure, apply patches, and monitor for suspicious activity.
- Potential code execution within the Chrome sandbox
- Requires verification of Chrome version and exposure
- Patching and updating Chrome to version 156.0.8078.47 or later
Technical summary
The vulnerability is caused by a memory corruption issue in Google Chrome's DevTools. This could allow a remote attacker to execute arbitrary code within the sandbox via a crafted HTML page. The issue was addressed in Chrome version 156.0.8078.47. The Chromium security team has assessed this vulnerability as having a Low severity. Defenders should prioritize verifying exposure and applying patches, as this vulnerability could allow code execution within the Chrome sandbox. Additionally, defenders should review compensating controls for exposed systems and monitor for suspicious activity.
Defensive priority
Defenders should prioritize verifying exposure and applying patches, as this vulnerability could allow code execution within the Chrome sandbox.
Recommended defensive actions
- Verify Chrome version and apply patch if necessary
- Monitor for suspicious HTML pages
- Implement sandboxing and isolation measures
- 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 description, affected versions, and references to vendor advisories. The vulnerability was addressed in Chrome version 156.0.8078.47. There are no known instances of this vulnerability being exploited in the wild. However, defenders should still verify exposure and apply patches as a precautionary measure.
Sources and references
Verified primary and authoritative sources
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CVE-2026-113125 CVE Program record
Publisher, destination, and source semantics verified
URL: https://www.cve.org/CVERecord?id=CVE-2026-113125
CVE Program - Official CVE Program record with source-provided CVE metadata.
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CVE-2026-113125 NVD vulnerability detail
Publisher, destination, and source semantics verified
URL: https://nvd.nist.gov/vuln/detail/CVE-2026-113125
NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.
Supplemental references
-
CVE-2026-113125
Unverified legacy reference
URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/113xxx/CVE-2026-113125.json
cve_program_cvelist_v5
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Source reference
Unverified legacy reference
URL: https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_02018666648.html
Supplemental source
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Source reference
Unverified legacy reference
URL: https://issues.chromium.org/issues/563819290
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.