CVE-2026-78908 — MEDIUM (4.3)

Q: What is CVE-2026-78908?

CVE-2026-78908 is a vulnerability with a CVSS score of 4.3 (MEDIUM). Information leak in Canvas in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: High)

Q: How severe is CVE-2026-78908?

CVE-2026-78908 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-78908?

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

Vulnerability Description

Information leak in Canvas in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: High)

CVSS Score

4.3

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

LOW

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Google	Chrome	< 152.0.7977.65

Related Weaknesses (CWE)

CWE-200

References

https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_Release NotesVendor Advisory
https://issues.chromium.org/issues/532904047Permissions Required

FAQ

What is CVE-2026-78908?

CVE-2026-78908 is a vulnerability with a CVSS score of 4.3 (MEDIUM). Information leak in Canvas in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: High)

How severe is CVE-2026-78908?

CVE-2026-78908 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-78908?

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