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CVE-2026-7338 Google CVE debrief

CVE-2026-7338 is a high-severity vulnerability in Google Chrome prior to version 147.0.7727.138. The vulnerability is a use-after-free issue in the Cast component, which could allow an attacker on the local network segment to potentially exploit heap corruption via malicious network traffic. This type of vulnerability occurs when a program attempts to use memory after it has been freed, which can lead to unpredictable behavior, crashes, or potentially exploitable conditions. Users of Google Chrome prior to version 147.0.7727.138 are affected and should update to the latest version to mitigate this vulnerability.

Vendor
Google
Product
Chrome
CVSS
HIGH 7.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-04-28
Original CVE updated
2026-07-24
Advisory published
2026-04-28
Advisory updated
2026-07-24

Who should care

This vulnerability affects users of Google Chrome prior to version 147.0.7727.138. It is recommended that users update to the latest version of Google Chrome to mitigate this vulnerability. Additionally, security teams and vulnerability management teams should review the CVE record and NVD entry for additional context and details about the vulnerability.

Technical summary

The vulnerability is a use-after-free issue in the Cast component of Google Chrome. This type of vulnerability occurs when a program attempts to use memory after it has been freed, which can lead to unpredictable behavior, crashes, or potentially exploitable conditions. In this case, an attacker on the local network segment could potentially exploit this vulnerability to cause heap corruption via malicious network traffic. The vulnerability affects Google Chrome prior to version 147.0.7727.138.

Defensive priority

High

Recommended defensive actions

  • Update Google Chrome to version 147.0.7727.138 or later
  • Ensure that Google Chrome is configured to automatically update
  • Monitor network traffic for suspicious activity
  • Implement network segmentation to limit the impact of a potential exploit
  • 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 2026-04-28T23:16:21.370Z and was last modified on 2026-07-24T08:10:00.150Z. The NVD entry is currently Analyzed. This information is based on the NVD entry and the CVE record. The vulnerability affects Google Chrome prior to version 147.0.7727.138. Users should verify their versions and update as necessary. The CVE record and NVD entry provide additional context and details about the vulnerability.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-7338 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-7338

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

  • CVE-2026-7338 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-7338

    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.