CVE-2026-73793 HPE NonStop Middleware - Secret key handling vulnerability
Attackers can exploit secret key handling and deserialization flaws in HPE NonStop Middleware to potentially execute code or access sensitive data.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-73793?
CVE-2026-73793 is a high-severity unsafe deserialization vulnerability in Hewlett Packard Enterprise HPE NonStop Middleware, published on 14 Oct 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
HPE NonStop Middleware software has secret key handling and data deserialization vulnerability.
Weakness: CWE-502
Which versions are affected by CVE-2026-73793?
How do I fix CVE-2026-73793?
No fix has been published for CVE-2026-73793 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2026-73793 being exploited?
There is no known exploitation of CVE-2026-73793 in the wild and no public exploit code.
Sources
Also known as GHSA-gg8w-382j-74wv.