CVE-2026-5473 NASA cFS Pickle pickle.load deserialization
Local attackers can exploit unsafe pickle deserialization in NASA cFS to execute arbitrary code, requiring high complexity.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-5473?
CVE-2026-5473 is a low-severity unsafe deserialization vulnerability in NASA cFS, published on 3 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability has been found in NASA cFS up to 7.0.0. The impacted element is the function pickle.load of the component Pickle Module. Such manipulation leads to deserialization. The attack needs to be performed locally. The attack requires a high level of complexity. The exploitability is regarded as difficult. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Which versions are affected by CVE-2026-5473?
It affects 1 product.
Products include Nasa Core Flight System.
How do I fix CVE-2026-5473?
No fix has been published for CVE-2026-5473 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-2026-5473 being exploited?
There is no known exploitation of CVE-2026-5473 in the wild and no public exploit code.
Other vulnerabilities in NASA cFS
Sources
Also known as GHSA-crxq-rm37-648f.