CVE-2026-97720 Apache Software Foundation CVE debrief

Who should care

Defenders responsible for Apache Impala deployments, particularly those using JWT/OAuth authentication for Impala executors, should assess exposure and prioritize remediation. This includes verifying authentication configurations for Impala executors, assessing exposure of Impala executors with JWT/OAuth auth enabled, and prioritizing upgrading to Apache Impala version 4.5.3 or later. Defenders should also consider disabling JWT/OAuth auth for Impala if

Why it matters

The authentication bypass vulnerability in Apache Impala's Impala Executor Webserver allows attackers to access resources served by the executor's webserver. Defenders should verify exposure, prioritize remediation through upgrading or disabling JWT/OAuth auth, and assess the impact on their deployment.

• Verify authentication configurations for Impala executors
• Assess exposure of Impala executors with JWT/OAuth auth enabled
• Prioritize upgrading to Apache Impala version 4.5.3 or later
• Consider disabling JWT/OAuth auth for Impala executors if not required

Technical summary

The Impala Executor Webserver in Apache Impala versions up to and including 4.5.2 has an authentication bypass vulnerability due to incorrect implementation of JWT/OAuth authentication. This allows attackers to access resources served by the executor's webserver when it is configured to accept JWT/OAuth tokens, as bearer token (JWT) signatures are not validated. The vulnerability can be remediated by upgrading to Apache Impala version 4.5.3 or disabling JWT/OAuth auth for Impala executors. Defenders should prioritize verifying exposure of Impala executors with JWT/OAuth auth enabled.

Defensive priority

Defenders should prioritize verifying exposure of Impala executors with JWT/OAuth auth enabled and upgrading to version 4.5.3 or disabling JWT/OAuth auth.

Recommended defensive actions

• Verify Impala executor configurations for JWT/OAuth auth
• Upgrade to Apache Impala version 4.5.3
• Disable JWT/OAuth auth for Impala executors if not required
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and source item provide details on the vulnerability, affected versions, and recommended actions. The vulnerability is caused by incorrect implementation of JWT/OAuth authentication in Impala executors. The CVE record was published on 2026-10-07T08:46:45.118Z and has not been modified since then. Defenders should verify the exposure of Impala executors with JWT/OAuth auth enabled and prioritize remediation.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.