Quick answers
- Is CVE-2026-30047 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-30047 being exploited in the wild.
- How severe is CVE-2026-30047?
- High severity, with a CVSS score of 7.5, published 27 August 2026.
- Which products and versions are affected?
- Open5GS v2.7.6.
- Is there a fix for CVE-2026-30047?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-30047 attacked?
- It is attacked over the network, in a hosted service.
- Am I affected by CVE-2026-30047?
- Check whether you run Open5GS at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A reachable assertion vulnerability exists in the /nsmf-pdusession/v1/sm-contexts component of Open5GS v2.7.6. The vulnerability is triggered in the smf_sess_find_by_psi() function when a DELETE request is sent with an unassigned PDU session identity (psi). The function fails an internal consistency check (assertion) that expects a valid session identifier, causing the SMF daemon to abort. An unauthenticated remote attacker can trigger this crash over the network by crafting a malicious HTTP/2 request to the session management endpoint, leading to Denial of Service. The fix requires patching the assertion handling or request validation logic in the vulnerable function.
Affected products
- Open5GS Open5GS v2.7.6
Timeline
- 2026-08-27: disclosed: CVE-2026-30047 published on NVD