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PatchSiren cyber security CVE debrief

CVE-2026-87575 Google CVE debrief

CVE-2026-87575 is an incorrect authorization vulnerability in Google Chrome's Loader component prior to version 153.0.8010.36. This CVE was published on 2026-09-09T01:17:15.277Z and was last modified on 2026-09-14T13:18:59.007Z. The NVD entry is currently Modified. The vulnerability allows remote attackers to bypass system access restrictions via a crafted HTML page, with a CVSS score of 5.4 and a severity of MEDIUM. Defenders should assess exposure and verify remediation, particularly in environments where social engineering attacks are a concern.

Vendor
Google
Product
Chrome
CVSS
MEDIUM 5.4
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-09
Original CVE updated
2026-09-14
Advisory published
2026-09-09
Advisory updated
2026-09-14

Who should care

Defenders responsible for Google Chrome deployments, particularly those in environments where social engineering attacks are a concern, should assess exposure and verify remediation.

Why it matters

CVE-2026-87575 is a MEDIUM severity vulnerability in Google Chrome's Loader component that allows remote attackers to bypass system access restrictions via a crafted HTML page. Defenders should prioritize verifying Chrome version 153.0.8010.36 or later is deployed, reviewing Loader component access controls, and monitoring for potential social engineering attempts.

  • Verify Chrome version 153.0.8010.36 or later is deployed to prevent potential bypass of system access restrictions
  • Review Loader component access controls to ensure proper authorization
  • Monitor for potential social engineering attempts targeting this vulnerability

Technical summary

The vulnerability is caused by incorrect authorization in the Loader component of Google Chrome prior to version 153.0.8010.36. This allows a remote attacker to bypass system access restrictions via a crafted HTML page, with a CVSS score of 5.4 and a severity of MEDIUM.

Defensive priority

Defenders should prioritize verifying Chrome version 153.0.8010.36 or later is deployed, reviewing Loader component access controls, and monitoring for potential social engineering attempts.

Recommended defensive actions

  • Verify Chrome version 153.0.8010.36 or later is deployed
  • Review Loader component access controls
  • Monitor for potential social engineering attempts

Evidence notes

The CVE record and NVD detail page provide information on the vulnerability, including its description, CVSS score, and affected versions. Vendor advisories and release notes are also available.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-87575 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-87575

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

  • CVE-2026-87575 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-87575

    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.