CVE-2016-5133 Auth bypass in n/a

What is CVE-2016-5133?

CVE-2016-5133 is a medium-severity authentication bypass vulnerability in Google Chrome, published on 23 Jul 2016. 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

Google Chrome before 52.0.2743.82 mishandles origin information during proxy authentication, which allows man-in-the-middle attackers to spoof a proxy-authentication login prompt or trigger incorrect credential storage by modifying the client-server data stream.

Weakness: CWE-287

Which versions are affected by CVE-2016-5133?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2016-5133?

Upgrade to a fixed version.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2016-5133 being exploited?

There is no known exploitation of CVE-2016-5133 in the wild and no public exploit code.

Other vulnerabilities in Google Chrome

• CVE-2022-4135 Google Chromium GPU Heap Buffer Overflow Exploited Critical 9.6
• CVE-2020-16017 Google Chrome Use-After-Free Exploited Critical 9.6
• CVE-2020-16010 Google Chrome for Android UI Heap Buffer Overflow Exploited Critical 9.6
• CVE-2026-87491 Google Chromium V8 Out of Bounds Write Exploited High 8.8
• CVE-2026-85046 Google Chromium V8 Type Confusion Exploited High 8.8

All Google Chrome vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-95wh-v6qf-2wcw, UBUNTU-CVE-2016-5133.