CVE-2019-5754 Information disclosure in Chrome

What is CVE-2019-5754?

CVE-2019-5754 is a medium-severity vulnerability in Debian Debian Linux, published on 19 Feb 2019. 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

Implementation error in QUIC Networking in Google Chrome prior to 72.0.3626.81 allowed an attacker running or able to cause use of a proxy server to obtain cleartext of transport encryption via malicious network proxy.

Weakness: CWE-327

Which versions are affected by CVE-2019-5754?

It affects 6 products.

Products include Debian Debian Linux, Fedoraproject Fedora, Google Chrome, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server, Redhat Enterprise Linux Workstation.

How do I fix CVE-2019-5754?

Upgrade to a fixed version.

Is CVE-2019-5754 being exploited?

There is no known exploitation of CVE-2019-5754 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

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

Also known as DEBIAN-CVE-2019-5754, GHSA-rxjr-px5v-35fg, UBUNTU-CVE-2019-5754.