CVE-2019-19703 URL Redirection to Untrusted Site (Open Redirect) in Ktor

What is CVE-2019-19703?

CVE-2019-19703 is a medium-severity vulnerability in n/a, published on 10 Dec 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

In Ktor through 1.2.6, the client resends data from the HTTP Authorization header to a redirect location.

Weakness: CWE-601

Which versions are affected by CVE-2019-19703?

2 open source packages ship an affected version, including io.ktor:ktor-client-core. It affects 1 product.

Products include Jetbrains Ktor.

How do I fix CVE-2019-19703?

Upgrade io.ktor:ktor-client-core to 1.3.0 or later.

Is CVE-2019-19703 being exploited?

There is no known exploitation of CVE-2019-19703 in the wild and no public exploit code.

Other vulnerabilities in n/a

• CVE-2019-12736 Command injection in n/a Critical 9.8
• CVE-2022-29930 SHA1 implementation in JetBrains Ktor Native 2.0.0 was returning the same value. High 8.7
• CVE-2023-45612 XML external entity in Ktor High 8.6
• CVE-2022-48476 Path traversal in Ktor High 7.5
• CVE-2021-43203 Auth bypass in n/a High 7.5

Sources

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

Also known as GHSA-xwgq-pcqx-hpmv.