CVE-2026-51785 Code injection in n/a
A remote attacker can execute arbitrary code on Hiawatha web servers via a crafted request, requiring immediate patching.
- 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-2026-51785?
CVE-2026-51785 is a critical code injection vulnerability in n/a, published on 31 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue in Hugo Leisink Hiawatha v.12.1 and before allows a remote attacker to execute arbitrary code via a crafted request
Weakness: CWE-94
Which versions are affected by CVE-2026-51785?
How do I fix CVE-2026-51785?
No fix has been published for CVE-2026-51785 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-2026-51785 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-51785 exists.
Sources
Also known as GHSA-8mxp-hf23-8hp4.