CVE-2026-108102 Open5GS through 2.8.0 Heap Out-of-Bounds Read via PFCP Volume Measurement IE
Remote attackers can read heap memory or crash the SMF by sending malformed PFCP requests to Open5GS.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-108102?
CVE-2026-108102 is a medium-severity memory corruption vulnerability in open5gs, published on 9 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Open5GS through 2.8.0 contains a heap out-of-bounds read vulnerability in ogs_pfcp_parse_volume_measurement() in lib/pfcp/types.c that allows remote unauthenticated attackers to read past IE buffers. Attackers can send a PFCP Session Report Request to the SMF on UDP port 8805 with a short, all-flags Volume Measurement IE, reading up to 48 bytes and potentially crashing the SMF.
Weakness: CWE-125
Which versions are affected by CVE-2026-108102?
How do I fix CVE-2026-108102?
No fix has been published for CVE-2026-108102 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-108102 being exploited?
There is no known exploitation of CVE-2026-108102 in the wild and no public exploit code.
Sources
Also known as GHSA-337v-466h-8gh6, GHSA-37c3-hv4f-688p.