CVE-2026-108105: open5gs open5gs

Open5GS through 2.8.0 MME Reachable Assertion via GTPv1 SGSN Context Request

CVSS 8.2 HighEPSS 0.0052 · 44th percentile

Published by the CVE Program (CNA: VulnCheck) at 9 Oct 2026, 14:08 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
open5gs	open5gs pkg:github/open5gs/open5gs	affected 2.8.0 and earlier semver Other versions: unaffected

Identifiers

CVE-2026-108105

CNA

VulnCheck

Weakness (CWE)

CWE-617

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
8.2	High	4.0	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N	CNA (VulnCheck)Used for this record
5.9	Medium	3.1	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H	CNA (VulnCheck)

CISA KEV Not listed.
EPSS 0.0052, the 44th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 9 Oct 2026. New records show when each source confirmed them.

Sources

References from the CNA

github.com/open5gs/open5gs/commit/346ce7a5e5cf2812bac3af042b5afba35bcf4f89 patch
github.com/open5gs/open5gs product
github.com/open5gs/open5gs/security/advisories/GHSA-9crh-64c8-56q6 vendor-advisory
github.com/open5gs/open5gs/blob/v2.8.0/src/mme/mme-gn-handler.c#L208-L217 technical-description
www.vulncheck.com/advisories/open5gs-through-2.8.0-mme-reachable-assertion-via-gtpv1-sgsn-context-request third-party-advisory

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.