CVE-2026-17978 — MEDIUM (5.3)

Q: How severe is CVE-2026-17978?

CVE-2026-17978 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-17978?

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

Vulnerability Description

Side-channel information leakage in WebCodecs in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: Low)

CVSS Score

5.3

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Google	Chrome	< 151.0.7922.72

Related Weaknesses (CWE)

CWE-1300

References

https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_Release NotesVendor Advisory
https://issues.chromium.org/issues/519610845Permissions Required

FAQ

What is CVE-2026-17978?

CVE-2026-17978 is a vulnerability with a CVSS score of 5.3 (MEDIUM). Side-channel information leakage in WebCodecs in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page....

How severe is CVE-2026-17978?

CVE-2026-17978 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-17978?

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