CVE-2026-44541 Fides: DOM-based XSS vulnerability in fides.js via fides_description override
An attacker can execute arbitrary JavaScript in the victim's browser via a DOM-based XSS vulnerability in the fides.js script.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-44541?
CVE-2026-44541 is a high-severity cross-site scripting vulnerability in ethyca fides, published on 8 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Fides is an open-source privacy engineering platform. From version 2.33.0 to before version 2.84.5, there is a DOM-based XSS vulnerability in fides.js via the fides_description override. This issue has been patched in version 2.84.5.
Weakness: CWE-79
Which versions are affected by CVE-2026-44541?
3 open source packages ship an affected version, including ethyca-fides.
| Package | Affected | Fixed in |
|---|---|---|
ethyca-fides PyPI | From 2.33.0 | 2.84.5 |
ethyca-fides PyPI | From 2.33.0 | 2.84.5 |
ethyca-fides PyPI | From 2.33.0 | 2.84.5 |
How do I fix CVE-2026-44541?
Upgrade ethyca-fides to 2.84.5 or later.
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-2026-44541 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-44541 exists.
Sources
Also known as GHSA-5qrq-9645-g5g2, PYSEC-2026-2470.