PatchSiren cyber security CVE debrief
CVE-2026-110915 Google CVE debrief
CVE-2026-110915 debrief: Google Chrome Compositing use after free vulnerability allows remote code execution. The vulnerability, tracked as CVE-2026-110915, is a use after free issue in the Compositing component of Google Chrome prior to version 155.0.8059.84. This vulnerability allows a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. Chrome users, especially those in sensitive environments or with high-risk browsing habits, should assess their exposure and update to the latest version.
- Vendor
- Product
- Chrome
- CVSS
- HIGH 8.8
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-10-15
- Original CVE updated
- 2026-10-16
- Advisory published
- 2026-10-15
- Advisory updated
- 2026-10-16
Who should care
Chrome users, particularly those with high-risk browsing habits or in sensitive environments, should assess exposure and update to the latest version.
Why it matters
CVE-2026-110915 is a high-severity use after free vulnerability in Google Chrome's Compositing component. It allows remote attackers to execute arbitrary code inside the sandbox via a crafted HTML page. Chrome users, especially those in sensitive environments or with high-risk browsing habits, should assess their exposure and update to version 155.0.8059.84 or later. The vulnerability's impact is currently limited by the lack of reported exploitation, but its high CVSS score of 8.8 indicates significant risk.
- Remote code execution inside the sandbox.
- Potential for attacker exploitation.
- Need for Chrome version verification.
- Update priority for Chrome users.
Technical summary
A use after free vulnerability in Google Chrome's Compositing component prior to version 155.0.8059.84 allows a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. The vulnerability's impact is currently limited by the lack of reported exploitation, but its high CVSS score of 8.8 indicates significant risk. Chrome users should update to version 155.0.8059.84 or later.
Defensive priority
High priority for Chrome users to update to version 155.0.8059.84 or later.
Recommended defensive actions
- Update Google Chrome to version 155.0.8059.84 or later.
- Review and verify Chrome version in use.
- Monitor for potential exploitation attempts.
Evidence notes
The CVE record and NVD entry provide details on the vulnerability, but additional information on exploitation is limited. There are no reported instances of exploitation, but the high CVSS score of 8.8 indicates significant risk. Defenders should verify Chrome version deployments and assess exposure.
Sources and references
Verified primary and authoritative sources
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CVE-2026-110915 CVE Program record
Publisher, destination, and source semantics verified
URL: https://www.cve.org/CVERecord?id=CVE-2026-110915
CVE Program - Official CVE Program record with source-provided CVE metadata.
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CVE-2026-110915 NVD vulnerability detail
Publisher, destination, and source semantics verified
URL: https://nvd.nist.gov/vuln/detail/CVE-2026-110915
NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.
Supplemental references
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Source reference
Unverified legacy reference
URL: https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_01886704284.html
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Source reference
Unverified legacy reference
URL: https://issues.chromium.org/issues/556272421
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.