CVE-2026-4992 wandb OpenUI HTMLAnnotator server.py get_share HTML injection
Remote attackers can inject HTML via the ID argument in wandb OpenUI's HTMLAnnotator, potentially leading to code execution or security bypass.
- 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-2026-4992?
CVE-2026-4992 is a medium-severity cross-site scripting vulnerability in wandb OpenUI, published on 27 Mar 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 has been found in wandb OpenUI up to 1.0. This affects the function create_share/get_share of the file backend/openui/server.py of the component HTMLAnnotator Component. Executing a manipulation of the argument ID can lead to HTML injection. The attack may be performed from remote. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-4992?
How do I fix CVE-2026-4992?
No fix has been published for CVE-2026-4992 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-2026-4992 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-4992 exists.
Sources
Also known as GHSA-gj7h-pv73-9jrx.