Improper input validation in Apache Polaris
CVE-2026-42810
Apache Polaris accepts literal `*` characters in namespace and table names. When it later builds temporary S3 access policies for delegated table access, those same characters appear to be reused unescaped in S3 IAM resource patterns and `…
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.001 (29.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
Affected products
- Apache Polaris
- Apache Software Foundation Polaris — versions 0
Weakness classification (CWE)
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-2026-42810?
- CVE-2026-42810 is a critical-severity vulnerability in Apache Polaris, classified under Improper Input Validation. CVSS score: 9.9/10. Published 2026-05-04.
- How severe is CVE-2026-42810?
- Critical severity. CVSS v3 base score is 9.9 out of 10.