CVE-2026-31048 Deserialization in n/a
Attackers can execute arbitrary code by sending crafted pickled messages to applications using the Pyro v3.x library.
- 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-2026-31048?
CVE-2026-31048 is a critical unsafe deserialization vulnerability in n/a, published on 13 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue in the <code>pickle</code> protocol of Pyro v3.x allows attackers to execute arbitrary code via supplying a crafted pickled string message.
Weakness: CWE-94
Which versions are affected by CVE-2026-31048?
How do I fix CVE-2026-31048?
No fix has been published for CVE-2026-31048 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-2026-31048 being exploited?
There is no known exploitation of CVE-2026-31048 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as UBUNTU-CVE-2026-31048.