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PatchSiren cyber security CVE debrief

CVE-2026-8551 Google CVE debrief

Use-after-free vulnerability in Google Chrome's Downloads component enables remote code execution through crafted HTML pages and user interaction.

Vendor
Google
Product
Chrome
CVSS
HIGH 8.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-05-14
Original CVE updated
2026-05-19
Advisory published
2026-05-14
Advisory updated
2026-05-19

Who should care

Organizations with managed Chrome deployments, security teams monitoring browser-based attack vectors, and end users on unpatched Chrome versions prior to 148.0.7778.168.

Technical summary

A use-after-free condition in Chrome's Downloads implementation allows memory corruption when processing crafted HTML pages. Successful exploitation requires convincing a user to perform specific UI interactions, after which arbitrary code execution occurs in the browser context. The vulnerability is classified as High severity by Chromium security team.

Defensive priority

high

Recommended defensive actions

  • Upgrade Google Chrome to version 148.0.7778.168 or later.
  • Restrict user execution of untrusted HTML content via browser policies.
  • Monitor for anomalous download-related browser crashes as potential exploitation indicators.

Evidence notes

CVE published 2026-05-14; NVD entry modified 2026-05-19. Vendor advisory confirms fix in Chrome 148.0.7778.168. Chromium issue tracker reference requires permissions. CVSS 3.1 vector: AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-8551 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-8551

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

  • CVE-2026-8551 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-8551

    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.