CVE-2026-93432 Io.quarkus.qute:quarkus-core: cross-site scripting (xss) and json injection via qute {#eval} section in quarkus
Attackers can execute arbitrary code or manipulate data via XSS and JSON injection in Quarkus Qute templates due to missing content type propagation in the eval section.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-93432?
CVE-2026-93432 is a medium-severity cross-site scripting vulnerability in Red Hat Exploit Intelligence, published on 18 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A flaw was found in the Quarkus Qute template engine. When the {#eval} section helper processes a sub-template, it fails to pass the parent template's content type information. This bypasses standard escaping mechanisms, allowing untrusted data to be output as raw, unescaped text. This vulnerability can lead to Cross-Site Scripting (XSS) and JSON Injection, potentially allowing a remote attacker to execute arbitrary code in a user's browser or manipulate data.
Weakness: CWE-79
Which versions are affected by CVE-2026-93432?
How do I fix CVE-2026-93432?
No fix has been published for CVE-2026-93432 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-2026-93432 being exploited?
There is no known exploitation of CVE-2026-93432 in the wild and no public exploit code.
Sources
Also known as GHSA-6wxq-x76c-fqrf.