What is CVE-2026-46718?

CVE-2026-46718 is a medium-severity vulnerability in Apache Calcite, classified under Use of Externally-Controlled Input to Select Classes or Code (Unsafe Reflection). CVSS score: 6.5/10. Published 2026-06-02.

How severe is CVE-2026-46718?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Apache Calcite

CVE-2026-46718

Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection') vulnerability in Apache Calcite. This issue affects Apache Calcite: from 1.5.0 before 1.42. Users are recommended to upgrade to version 1.42, which fixes…

EPSS: 0.002 (36.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

Affected products

Apache Calcite
Apache Software Foundation Calcite — versions 1.5.0

Weakness classification (CWE)

CWE-470 — Use of Externally-Controlled Input to Select Classes or Code (Unsafe Reflection)

References

security@apache.org (vendor-advisory, Mailing List, Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2026-46718?: CVE-2026-46718 is a medium-severity vulnerability in Apache Calcite, classified under Use of Externally-Controlled Input to Select Classes or Code (Unsafe Reflection). CVSS score: 6.5/10. Published 2026-06-02.
How severe is CVE-2026-46718?: Medium severity. CVSS v3 base score is 6.5 out of 10.