CVE-2026-91855
mediumA security flaw has been discovered in Open5GS up to 2.7.7.
A security flaw has been discovered in Open5GS up to 2.7.7. Affected by this vulnerability is an unknown functionality of the file lib/pfcp/handler.c of the component PFCP Message Handler. Performing a manipulation results in denial of service. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks. The patch is named 028e1dbb5e3271035ccee906ef417a97fc523f71. Applying a patch is the recommended action to fix this issue. CVE-2025-29339 describes a different assertion failure vulnerability in Open5GS UPF.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/open5gs/open5gs/ cna@vuldb.com
- https://github.com/open5gs/open5gs/commit/028e1dbb5e3271035ccee906ef417a97fc523f71 cna@vuldb.com
- https://github.com/open5gs/open5gs/issues/4699 cna@vuldb.com
- https://vuldb.com/cve/CVE-2026-91855 cna@vuldb.com
- https://vuldb.com/submit/933834 cna@vuldb.com
- https://vuldb.com/vuln/404086 cna@vuldb.com
- https://vuldb.com/vuln/404086/cti cna@vuldb.com