CVE-2026-93684 Apache Impala: Stored XSS in Impala query plans
An attacker with SELECT permissions can inject JavaScript into table aliases, executing it in other users' browsers via the Impala Web UI.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-93684?
CVE-2026-93684 is a medium-severity cross-site scripting vulnerability in Apache Impala, published on 7 Oct 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2026-93684?
How do I fix CVE-2026-93684?
No fix has been published for CVE-2026-93684 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-93684 being exploited?
There is no known exploitation of CVE-2026-93684 in the wild and no public exploit code.
Sources
Also known as GHSA-gr7f-9f5r-v3mg.