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CVE-2026-5880 Google CVE debrief

CVE-2026-5880 is a Medium severity vulnerability in Google Chrome prior to version 147.0.7727.55. It involves insufficient policy enforcement in the browser UI, allowing a remote attacker who has compromised the renderer process to spoof the contents of the Omnibox (URL bar) via a crafted HTML page. This vulnerability could lead to user confusion or further exploitation. Web administrators and security teams should ensure that Chrome is updated to the latest version to mitigate this risk. The vulnerability's impact is primarily on users of Google Chrome, particularly those who may be targeted by remote attackers.

Vendor
Google
Product
Chrome
CVSS
MEDIUM 4.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-04-08
Original CVE updated
2026-07-24
Advisory published
2026-04-08
Advisory updated
2026-07-24

Who should care

This vulnerability affects users of Google Chrome, particularly those who may be targeted by remote attackers. Web administrators and security teams should ensure that Chrome is updated to the latest version to mitigate this risk. IT teams responsible for managing Chrome deployments should prioritize updating Chrome to the latest version.

Technical summary

The vulnerability is caused by insufficient policy enforcement in the browser UI of Google Chrome. A remote attacker who has compromised the renderer process can exploit this vulnerability to spoof the contents of the Omnibox (URL bar) via a crafted HTML page. This could lead to user confusion or further exploitation. The vulnerability affects Google Chrome prior to version 147.0.7727.55. There are no reports of this vulnerability being exploited in the wild, but defenders should still consider implementing additional security measures.

Defensive priority

Medium priority due to the potential for user confusion and further exploitation.

Recommended defensive actions

  • Update Google Chrome to version 147.0.7727.55 or later
  • Ensure that Chrome's auto-update feature is enabled
  • Monitor Chrome's version and update as necessary
  • Consider implementing additional security measures such as browser security policies and user education
  • 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

Evidence notes

The CVE record for CVE-2026-5880 was published on 2026-04-08T22:16:27.650Z and last modified on 2026-07-24T08:10:00.150Z. The NVD entry is currently Analyzed. However, details about the vulnerability's impact and affected systems are limited. To verify the vulnerability's scope, defenders should review the official CVE record and NVD entry. The vulnerability affects Google Chrome prior to version 147.0.7727.55.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-5880 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-5880

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

  • CVE-2026-5880 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-5880

    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.