Nixpkgs security tracker

Untriaged

Permalink CVE-2026-26025

created 1 month, 2 weeks ago

free5GC SMF crash (nil pointer dereference) on PFCP SessionReportRequest when ReportType.USAR=1 and UsageReport omits mandatory URRID sub-IE

free5GC SMF provides Session Management Function for free5GC, an open-source project for 5th generation (5G) mobile core networks. In versions up to and including 1.4.1, SMF panics and terminates when processing a malformed PFCP SessionReportRequest on the PFCP (UDP/8805) interface. No known upstream fix is available, but some workarounds are available. ACL/firewall the PFCP interface so only trusted UPF IPs can reach SMF (reduce spoofing/abuse surface); drop/inspect malformed PFCP SessionReportRequest messages at the network edge where feasible, and/or add recover() around PFCP handler dispatch to avoid whole-process termination (mitigation only).

References

https://github.com/free5gc/free5gc/security/advisories/GHSA-vw8r-p7h3-g3xh x_refsource_CONFIRM
https://github.com/free5gc/free5gc/issues/807 x_refsource_MISC

Affected products

smf

==<= 1.4.1

Matching in nixpkgs

pkgs.smfh

Sleek Manifest File Handler

nixos-unstable 1.4
- nixpkgs-unstable 1.4
- nixos-unstable-small 1.4
nixos-25.11 1.4
- nixos-25.11-small 1.4
- nixpkgs-25.11-darwin 1.4

pkgs.asmfmt

Go assembler formatter

nixos-unstable 1.3.2
- nixpkgs-unstable 1.3.2
- nixos-unstable-small 1.3.2
nixos-25.11 1.3.2
- nixos-25.11-small 1.3.2
- nixpkgs-25.11-darwin 1.3.2

pkgs.libsmf

C library for reading and writing Standard MIDI Files

nixos-unstable 1.3
- nixpkgs-unstable 1.3
- nixos-unstable-small 1.3
nixos-25.11 1.3
- nixos-25.11-small 1.3
- nixpkgs-25.11-darwin 1.3

pkgs.nasmfmt

Formatter for NASM source files

nixos-unstable 2022-09-15
- nixpkgs-unstable 2022-09-15
- nixos-unstable-small 2022-09-15
nixos-25.11 2022-09-15
- nixos-25.11-small 2022-09-15
- nixpkgs-25.11-darwin 2022-09-15