TI-2026-54359 Aliases CVE-2026-78158 GHSA-87xw-rrcr-f94r

Open5GS AMF UEContextReleaseRequest Path improper authorization

LOW 24CWE-266Published 2026-08-24 · Updated 2026-08-27

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Privilege escalation, Security bypass
Confidentiality · integrity · availability: Low · Low · Low
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-266 and CWE-285.

Summary

A flaw has been found in Open5GS 2.8.0. This vulnerability affects unknown code of the component AMF UEContextReleaseRequest Path Handler. Executing a manipulation can lead to improper authorization. It is possible to launch the attack remotely.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00366 30th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	Open5GS	2.8.0	—	No fix listed	CNA

Open5GS Vendor— Affected 2.8.0 Fixed in — No fix listed CNA

CPE names CNA · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:open5gs:open5gs::::::::	—	—	Open5GS

cpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:* Versions — — ·Open5GS

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-78158
2026-10-03 Alias added: GHSA-87xw-rrcr-f94r

References

Other 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences