CVE-2026-8268

A vulnerability has been found in Open5GS up to 2.7.7. This issue affects the function OpenAPIlistcreate of the component SMF. Such manipulation leads to denial of service. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The project was informed ...

CVE-2026-8288

A vulnerability was determined in Open5GS up to 2.7.7. This affects the function gsmhandlepdusessionmodificationqosflowdescriptions of the file src/smf/gsm-handler.c of the component SMF. Executing a manipulation of the argument n1SmMsg can lead to denial of service. The attack may be launched...

CVE-2026-44328

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's SMF mounts the UPI management route group without inbound OAuth2 middleware. On top of that, the DELETE /upi/v1/upNodesLinks/upNodeRef handler unconditionally dereferences upNode.UPF after the type-guarded...

CVE-2026-44320

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's NEF mounts the nnef-callback route group without inbound OAuth2/bearer-token authorization. A forged or arbitrary bearer token e.g. Authorization: Bearer not-a-real-token is enough to reach the SMF-callback...

EUVD-2026-32577

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's SMF mounts the UPI management route group without inbound OAuth2 middleware. The POST /upi/v1/upNodesLinks create-or-update handler accepts attacker-controlled JSON and passes it directly into...

CVE-2026-44321 free5GC: SMF UPI POST /upi/v1/upNodesLinks exits the SMF process on overlapping UE pools (unauthenticated, reachable Fatalf)

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's SMF mounts the UPI management route group without inbound OAuth2 middleware. The POST /upi/v1/upNodesLinks create-or-update handler accepts attacker-controlled JSON and passes it directly into...

CVE-2026-44321

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's SMF mounts the UPI management route group without inbound OAuth2 middleware. The POST /upi/v1/upNodesLinks create-or-update handler accepts attacker-controlled JSON and passes it directly into...

CVE-2026-44329

CVE-2026-44329 affects free5GC SMF v4.2.1 where the UPI management route group is mounted without OAuth2/bearer-token auth. Consequently, unauthenticated requests to /upi/v1/upNodesLinks (GET, POST with attacker-controlled payload, DELETE /upi/v1/upNodesLinks/{nodeID}) can reach SMF business hand...

free5GC 安全漏洞

free5GC is an open-source project for the 5th generation 5G mobile core network. Versions of free5GC prior to 4.2.2 contained security vulnerabilities. These vulnerabilities stemmed from SMF failing to include the necessary inbound OAuth2 middleware when mounting UPI management routing groups. Th...

CVE-2026-44320: Missing Authentication for Critical Function

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's NEF mounts the nnef-callback route group without inbound OAuth2/bearer-token authorization. A forged or arbitrary bearer token e.g. Authorization: Bearer not-a-real-token is enough to reach the SMF-callback...

CVE-2026-44329: Missing Authentication for Critical Function

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's SMF mounts the UPI management route group without OAuth2/bearer-token authorization middleware. A network attacker who can reach SMF on the SBI can hit UPI endpoints with no Authorization header at all, and...

CVE-2026-44321: Missing Authentication for Critical Function

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's SMF mounts the UPI management route group without inbound OAuth2 middleware. The POST /upi/v1/upNodesLinks create-or-update handler accepts attacker-controlled JSON and passes it directly into...

CVE-2026-44328: Missing Authentication for Critical Function

free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's SMF mounts the UPI management route group without inbound OAuth2 middleware. On top of that, the DELETE /upi/v1/upNodesLinks/upNodeRef handler unconditionally dereferences upNode.UPF after the type-guarded...

PT-2026-42379

free5GC's SMF UPI management interface lacks auth middleware; unauthenticated topology read/write requests reach handlers in github.com/free5gc/smf...

CVE-2026-8289

A vulnerability was identified in Open5GS up to 2.7.7. This vulnerability affects the function smfnsmfhandleupdatedatainvsmf of the file /src/smf/nsmf-handler.c of the component SMF. The manipulation of the argument qosFlowProfile leads to denial of service. Remote exploitation of the attack is...

CVE-2026-8248

A vulnerability was detected in Open5GS up to 2.7.7. The affected element is the function updateauthorizedpccruleandqos of the file /src/smf/npcf-handler.c of the component SMF. The manipulation results in denial of service. The attack may be launched remotely. The exploit is now public and may b...

EUVD-2026-29052

A vulnerability was identified in Open5GS up to 2.7.7. This vulnerability affects the function smfnsmfhandleupdatedatainvsmf of the file /src/smf/nsmf-handler.c of the component SMF. The manipulation of the argument qosFlowProfile leads to denial of service. Remote exploitation of the attack is...

CVE-2026-8290

A security flaw has been discovered in Open5GS up to 2.7.7. This issue affects the function smfnsmfhandleupdatedatainvsmf of the file /src/smf/nsmf-handler.c of the component SMF. The manipulation results in denial of service. The attack can be executed remotely. The exploit has been released to...

CVE-2026-8290

Open5GS up to 2.7.7 is affected in the SMF component, specifically the function smf_nsmf_handle_update_data_in_vsmf in /src/smf/nsmf-handler.c. The issue allows remote denial of service due to the described manipulation. Public exploit appears to exist, and the project was notified via an issue r...

CVE-2026-8290

A security flaw has been discovered in Open5GS up to 2.7.7. This issue affects the function smfnsmfhandleupdatedatainvsmf of the file /src/smf/nsmf-handler.c of the component SMF. The manipulation results in denial of service. The attack can be executed remotely. The exploit has been released to...