What is CVE-2026-97720?

CVE-2026-97720 is a critical-severity vulnerability in Apache Software Foundation Impala, classified under Incorrect Implementation of Authentication Algorithm. CVSS score: 9.1/10. Published 2026-10-07.

How severe is CVE-2026-97720?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Vulnerability in Apache Software Foundation Impala

CVE-2026-97720

Incorrect implementation of JWT/OAuth authentication in Impala executors in Apache Impala versions up to and including 4.5.2 which allows attacked to access resources served by the executor's webserver when that webserver is configured to accept JWT/OAuth tokens. Bearer token (JWT) signatures are not validated resulting in the webserver accepting any valid JWT. Users are recommended to either disable JWT/OAuth auth for Impala executors or upgrade to version 4.5.3, which fixes this issue.

Published 2026-10-07 · last modified 2026-10-07.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Apache Software Foundation Impala

Weakness classification (CWE)

CWE-303 — Incorrect Implementation of Authentication Algorithm

References

lists.apache.org/thread.html/q2qkrnko9hdv2mhqy6prm06f65n2g3h2 (vendor-advisory)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2026-97720?: CVE-2026-97720 is a critical-severity vulnerability in Apache Software Foundation Impala, classified under Incorrect Implementation of Authentication Algorithm. CVSS score: 9.1/10. Published 2026-10-07.
How severe is CVE-2026-97720?: Critical severity. CVSS v3 base score is 9.1 out of 10.