CVE-2020-13955 Missing Authentication for Critical Function in Apache Calcite

What is CVE-2020-13955?

CVE-2020-13955 is a medium-severity vulnerability in Apache Calcite, published on 9 Oct 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

HttpUtils#getURLConnection method disables explicitly hostname verification for HTTPS connections making clients vulnerable to man-in-the-middle attacks. Calcite uses internally this method to connect with Druid and Splunk so information leakage may happen when using the respective Calcite adapters. The method itself is in a utility class so people may use it to create vulnerable HTTPS connections for other applications. From Apache Calcite 1.26 onwards, the hostname verification will be performed using the default JVM truststore.

Weakness: CWE-295

Which versions are affected by CVE-2020-13955?

6 open source packages ship an affected version, including org.apache.calcite:calcite-core, org.apache.calcite:calcite-druid and org.apache.calcite:calcite-splunk. It affects 1 product.

Products include Apache Calcite.

How do I fix CVE-2020-13955?

Upgrade org.apache.calcite:calcite-core to 1.26.0 or later.

Is CVE-2020-13955 being exploited?

There is no known exploitation of CVE-2020-13955 in the wild and no public exploit code.

Other vulnerabilities in Apache Calcite

• CVE-2022-39135 Apache Calcite: potential XEE attacks Critical 9.8
• CVE-2026-46718 Apache Calcite: A user-controled model can load arbitrary classes, leading to code execution Medium 6.5

Sources

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

Also known as GHSA-hxp5-8pgq-mgv9.