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PatchSiren cyber security CVE debrief

CVE-2026-5918 Google CVE debrief

CVE-2026-5918 is a low-severity vulnerability in Google Chrome's Navigation feature. It allows a remote attacker who has compromised the renderer process to leak cross-origin data via a crafted HTML page. This vulnerability was addressed in Google Chrome version 147.0.7727.55. The affected product is Google Chrome, and the vulnerability class is related to inappropriate implementation in the Navigation feature. The likely operational impact is low, and the source-confidence limits are based on the official CVE record and NVD detail page.

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

Users of Google Chrome prior to version 147.0.7727.55 should apply updates to mitigate this vulnerability. This includes operators, platform administrators, vulnerability management teams, and security teams who are responsible for ensuring the security of Google Chrome deployments. The affected operator is anyone using Google Chrome, and the platform impact is low.

Technical summary

The vulnerability is caused by an inappropriate implementation in the Navigation feature of Google Chrome. This allows a remote attacker, who has compromised the renderer process, to leak cross-origin data via a crafted HTML page. The issue was addressed in Google Chrome version 147.0.7727.55. The affected product context is Google Chrome versions prior to 147.0.7727.55. The defensive impact is low, and the source-grounded technical framing is based on the official CVE record and NVD detail page.

Defensive priority

Medium priority due to the low severity and specific conditions required for exploitation.

Recommended defensive actions

  • Apply Google Chrome updates to version 147.0.7727.55 or later
  • Ensure that Google Chrome is configured to automatically update
  • Monitor Google Chrome for any suspicious activity
  • Implement additional security measures such as network segmentation and access controls
  • 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 was published on 2026-04-08T22:16:31.570Z and last modified on 2026-07-24T08:10:00.150Z. The NVD entry is currently Analyzed. This vulnerability affects Google Chrome versions prior to 147.0.7727.55. The CVE record was obtained from the official CVE.org website and the NVD detail page. The source item URL is also provided for reference.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-5918 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-5918

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

  • CVE-2026-5918 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-5918

    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.