CVE-2026-93684
Received Received - Intake

Stored XSS in Apache Impala Web UI

Publication date: 2026-10-07

Last updated on: 2026-10-07

Assigner: Apache Software Foundation

Description
An SQL user using Impala up to and including version 4.5.2 with only SELECT permission can put JavaScript in a table alias and make it run in another user's browser when that user opens the query plan in Impala's Web UI. This is stored XSS (CWE-79). Users are recommended to upgrade to version 4.5.3.

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Meta Information

Published
2026-10-07
Last Modified
2026-10-07
Generated
2026-10-07
AI Q&A
2026-10-07
EPSS Evaluated
N/A
NVD
CVE-2026-93684
EUVD
EUVD-2026-94224

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Apache Software Foundation Apache Impala 2.7.0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

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Executive Summary

This is a stored cross-site scripting (XSS) vulnerability in Apache Impala up to version 4.5.2. A user with only SELECT permission can inject JavaScript into a table alias. When another user views the query plan in Impala's Web UI, the injected script executes in their browser.

Detection Guidance

Check Impala version with: impala-shell --version. If it is 4.5.2 or earlier, the system is vulnerable. Inspect table aliases in queries for JavaScript content via logs or UI.

Impact Analysis

An attacker could steal session cookies, perform actions on behalf of the user, or redirect them to malicious sites. Users viewing query plans in Impala's Web UI are at risk if an attacker has previously exploited this flaw.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating GDPR's integrity and confidentiality principles or HIPAA's safeguards for protected health information. Organizations may face compliance penalties if exploited.

Mitigation Strategies

Upgrade Impala to version 4.5.3 or later immediately. Restrict SELECT permissions to trusted users only. Monitor query plans in the Web UI for suspicious aliases.

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