# CVE-2026-30079: Auth bypass in n/a

> Attackers can bypass authentication in OpenAirInterface AMF by sending out-of-sequence messages, allowing unauthorized UE registration.

- **Severity:** Critical 9.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 7 Apr 2026
- **Updated:** 9 Apr 2026
- **Also known as:** GHSA-j69j-3gv3-pwvg

## What is CVE-2026-30079?

CVE-2026-30079 is a critical authentication bypass vulnerability in n/a, published on 7 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

In OpenAirInterface V2.2.0 AMF, Out of sequence messages causes incorrect state transition during UE registration procedure. This allows authentication to be bypassed completely. If a SecurityModeComplete message is sent after InitialUERegistration, a registration reject is received followed by a registration accept! This leads the UE to be registered without proper authentication.

Weakness: CWE-288 (Authentication Bypass Using an Alternate Path or Channel)

## Which versions are affected by CVE-2026-30079?

It affects 1 product.


Products: Openairinterface Oai-Cn5g-Amf.

## How do I fix CVE-2026-30079?

No fix has been published for CVE-2026-30079 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-30079 being exploited?

There is no known exploitation of CVE-2026-30079 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2026-30075](https://insights.sbomify.com/CVE-2026-30075/): Memory corruption in n/a (high 7.5)
- [CVE-2026-30080](https://insights.sbomify.com/CVE-2026-30080/): Security feature bypass in n/a (high 7.5)
- [CVE-2026-30078](https://insights.sbomify.com/CVE-2026-30078/): Denial of service in n/a (high 7.5)
- [CVE-2025-65805](https://insights.sbomify.com/CVE-2025-65805/): Memory corruption in n/a (high 7.5)
- [CVE-2025-66786](https://insights.sbomify.com/CVE-2025-66786/): Denial of service in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-30079 and fix it if it is affected.

What it is: CVE-2026-30079 is a critical authentication bypass vulnerability in n/a, published on 7 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-30079 in the wild and no public exploit code.

Affected product: n/a. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-30079/ (Markdown: https://insights.sbomify.com/CVE-2026-30079/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-30079
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-30079
- OSV: https://osv.dev/vulnerability/CVE-2026-30079

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-30079/
Summaries are generated and may contain mistakes; the official description above is the record.