CVE-2025-55346 Unintended dynamic code execution leads to remote code execution by network attackers
Network attackers can execute arbitrary JavaScript code on the host by sending a POST request due to unsafe dynamic code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-55346?
CVE-2025-55346 is a critical code injection vulnerability in flowise, published on 14 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
User-controlled input flows to an unsafe implementation of a dynamic Function constructor, allowing network attackers to run arbitrary unsandboxed JS code in the context of the host, by sending a simple POST request.
Weakness: CWE-94
Which versions are affected by CVE-2025-55346?
2 open source packages ship an affected version, including flowise.
| Package | Affected | Fixed in |
|---|---|---|
flowise npm | All versions to 2.2.7-patch.1 | None |
flowise npm | All versions to 2.2.7-patch.1 | None |
How do I fix CVE-2025-55346?
No fix has been published for CVE-2025-55346 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2025-55346 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-55346 exists.
Sources
Also known as GHSA-hmgh-466j-fx4c.