CVE-2026-30064 Denial of service in n/a

High 7.5 Published Updated

Attackers can cause a Denial of Service in free5gc by sending crafted input to the buildFilter function due to improper input validation.

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-2026-30064?

CVE-2026-30064 is a high-severity denial of service vulnerability in n/a, published on 27 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Improper input validation in the buildFilter function (processor/processor.go) of free5gc v4.0.1 allows attackers to cause a Denial of Service (DoS) via a crafted input.

Weakness: CWE-20

Which versions are affected by CVE-2026-30064?

How do I fix CVE-2026-30064?

No fix has been published for CVE-2026-30064 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2026-30064 being exploited?

There is no known exploitation of CVE-2026-30064 in the wild and no public exploit code.

Sources

Also known as GHSA-74j6-gp9p-c9w9.

Is CVE-2026-30064 in your software?

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