CVE-2026-17903 — MEDIUM (5.4)

Q: How severe is CVE-2026-17903?

CVE-2026-17903 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-17903?

Check the references section above for vendor advisories and patch information. Affected products include: Google Chrome.

Vulnerability Description

Insufficient policy enforcement in Chromecast in Google Chrome prior to 151.0.7922.72 allowed an attacker on the local network segment to inject scripts or HTML into a privileged page via malicious network traffic. (Chromium security severity: Low)

CVSS Score

5.4

MEDIUM

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Google	Chrome	< 151.0.7922.72

Related Weaknesses (CWE)

CWE-79

References

https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_Release NotesVendor Advisory
https://issues.chromium.org/issues/497277880Permissions Required

FAQ

What is CVE-2026-17903?

CVE-2026-17903 is a vulnerability with a CVSS score of 5.4 (MEDIUM). Insufficient policy enforcement in Chromecast in Google Chrome prior to 151.0.7922.72 allowed an attacker on the local network segment to inject scripts or HTML into a privileged page via malicious ne...

How severe is CVE-2026-17903?

CVE-2026-17903 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-17903?

Check the references section above for vendor advisories and patch information. Affected products include: Google Chrome.