CVE-2026-97720 Apache Impala: Impala Executor Webserver Auth Bypass

Critical 9.1 Published Updated

Attackers can bypass authentication on Impala executor webservers configured for JWT/OAuth, gaining unauthorized access to resources.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-97720?

CVE-2026-97720 is a critical authentication bypass vulnerability in Apache Impala, published on 7 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-303

Which versions are affected by CVE-2026-97720?

How do I fix CVE-2026-97720?

No fix has been published for CVE-2026-97720 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-97720 being exploited?

There is no known exploitation of CVE-2026-97720 in the wild and no public exploit code.

Sources

Also known as GHSA-g6xq-6pmr-p37c.

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