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PatchSiren cyber security CVE debrief

CVE-2026-7926 Google CVE debrief

A use-after-free vulnerability in Google Chrome's PresentationAPI prior to version 148.0.7778.96 allows remote attackers to execute arbitrary code within a sandbox via a crafted HTML page. This issue, tracked as CVE-2026-7926, has been classified as High severity by the Chromium security team. The vulnerability can lead to remote code execution within a sandbox, potentially allowing attackers to escape the sandbox environment, elevation of privileges for attackers targeting Chrome users, and potential for attackers to execute malicious code on affected systems. Defenders should prioritize assessing exposure and applying patches, especially for environments accessing untrusted web内容

Vendor
Google
Product
Chrome
CVSS
HIGH 8.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-05-06
Original CVE updated
2026-10-26
Advisory published
2026-05-06
Advisory updated
2026-10-26

Who should care

Defenders responsible for managing Google Chrome deployments, especially in environments where users access untrusted or potentially malicious web content, should assess exposure and apply patches. This includes IT administrators, security teams, and anyone responsible for maintaining browser updates in their organization.

Why it matters

CVE-2026-7926 is a high-severity use-after-free vulnerability in Google Chrome's PresentationAPI that allows remote attackers to execute arbitrary code within a sandbox. Defenders should prioritize assessing exposure and applying patches, especially for environments accessing untrusted web content.

  • Remote code execution within a sandbox, potentially allowing attackers to escape the sandbox environment.
  • Elevation of privileges for attackers targeting Chrome users.
  • Potential for attackers to execute malicious code on affected systems.
  • Need for defenders to verify Chrome versions and apply patches.

Technical summary

The vulnerability is a use-after-free issue in the PresentationAPI of Google Chrome prior to version 148.0.7778.96. This allows a remote attacker to execute arbitrary code within a sandbox via a crafted HTML page. The issue has been classified as High severity by the Chromium security team, with a CVSS score of 8.8.

Defensive priority

Defenders should prioritize assessing exposure and applying patches for Google Chrome users, especially in environments where users access untrusted or potentially malicious web content.

Recommended defensive actions

  • Assess exposure for Google Chrome users, especially in environments accessing untrusted web content.
  • Apply patches to update Google Chrome to version 148.0.7778.96 or later.
  • Monitor for potential exploitation attempts targeting this vulnerability.
  • Verify inventory of Chrome versions in use and prioritize patching for high-risk environments.

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, including its classification as a use-after-free issue in the PresentationAPI of Google Chrome. The Chromium security severity is rated as High, with a CVSS score of 8.8.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-7926 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-7926

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-7926 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-7926

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

Supplemental references

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.