CVE-2026-78958 Information disclosure in Chrome

Low 3.1 Published Updated

A remote attacker with compromised renderer access can obtain cross-origin data via a crafted HTML page in Google Chrome.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2026-78958?

CVE-2026-78958 is a low-severity vulnerability in Google Chrome, published on 25 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Uninitialized resource in Skia in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process to potentially obtain cross-origin data via a crafted HTML page. (Chromium security severity: Medium)

Weakness: CWE-908

Which versions are affected by CVE-2026-78958?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2026-78958?

Upgrade to a fixed version.

Is CVE-2026-78958 being exploited?

There is no known exploitation of CVE-2026-78958 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as DEBIAN-CVE-2026-78958, ECHO-753d-bf37-39f0, GHSA-99gg-chh4-2jjc, MINI-rq98-4jjw-fvh6.

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