CVE-2016-5419 Security feature bypass in n/a

What is CVE-2016-5419?

CVE-2016-5419 is a high-severity vulnerability in Debian Debian Linux, published on 10 Aug 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

curl and libcurl before 7.50.1 do not prevent TLS session resumption when the client certificate has changed, which allows remote attackers to bypass intended restrictions by resuming a session.

Weakness: CWE-310

Which versions are affected by CVE-2016-5419?

It affects 3 products.

Products include Debian Debian Linux, Haxx Libcurl, Opensuse Leap.

How do I fix CVE-2016-5419?

Upgrade to a fixed version.

Is CVE-2016-5419 being exploited?

There is no known exploitation of CVE-2016-5419 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 ALPINE-CVE-2016-5419, CLEANSTART-2026-DO77426, CURL-CVE-2016-5419, DEBIAN-CVE-2016-5419, GHSA-j5mq-cppw-g9w7, UBUNTU-CVE-2016-5419.