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PatchSiren cyber security CVE debrief

CVE-2026-17731 Google CVE debrief

CVE-2026-17731 is an inappropriate implementation in Autofill in Google Chrome on Android prior to version 151.0.7922.72. This vulnerability allowed a remote attacker to leak cross-origin data via a crafted HTML page, classified as Medium severity with a CVSS score of 4.3. The issue was fixed in version 151.0.7922.72. Evidence is limited to publicly available sources and may not reflect the full scope or impact of the vulnerability. Defenders should verify Autofill functionality in Google Chrome on Android and review compensating controls for exposed systems. Users of Google Chrome on Android, particularly those who handle sensitive data or browse the web frequently, should be aware of this vulnerability and take steps to protect themselves by updating to the latest version of Google Chrome. This includes administrators responsible for managing Chrome deployments, security teams monitoring for potential exploitation attempts, and individual users who rely on Chrome for daily browsing activities. The CVE record was published on 2026-07-30T01:16:35.820Z and has not been modified since then.

Vendor
Google
Product
Chrome
CVSS
MEDIUM 4.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-30
Original CVE updated
2026-08-03
Advisory published
2026-07-30
Advisory updated
2026-08-03

Who should care

Users of Google Chrome on Android, particularly those who handle sensitive data or browse the web frequently, should be aware of this vulnerability and take steps to protect themselves by updating to the latest version of Google Chrome. This includes administrators responsible for managing Chrome deployments, security teams monitoring for potential exploitation attempts, and individual users who rely on Chrome for daily browsing activities.

Technical summary

The CVE-2026-17731 vulnerability is an inappropriate implementation in Autofill in Google Chrome on Android prior to version 151.0.7922.72. This allowed a remote attacker to leak cross-origin data via a crafted HTML page. The vulnerability has a CVSS score of 4.3 and is classified as Medium severity. The issue was fixed in version 151.0.7922.72. Users should update to the latest version of Google Chrome to mitigate this vulnerability.

Defensive priority

Medium severity vulnerability in Google Chrome Autofill on Android, requiring immediate attention.

Recommended defensive actions

  • Apply the patch to update Google Chrome to version 151.0.7922.72 or later
  • Monitor for potential exploitation attempts
  • Verify Autofill functionality in Google Chrome on Android
  • 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
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE-2026-17731 vulnerability was reported in Google Chrome's Autofill feature on Android. According to the NVD, the vulnerability has a CVSS score of 4.3 and is classified as Medium severity. The issue was fixed in version 151.0.7922.72. Evidence is limited to publicly available sources and may not reflect the full scope or impact of the vulnerability. Defenders should verify Autofill functionality in Google Chrome on Android and review compensating controls for exposed systems.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-17731 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-17731

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

  • CVE-2026-17731 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-17731

    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.