Medium severity · published May 11, 2026
CVE-2026-8268
Open5GS SMF OpenAPI_list_create denial of service
6.5
CVSS
0.4%
EPSS
No
On KEV
Description
A vulnerability has been found in Open5GS up to 2.7.7. This issue affects the function OpenAPI_list_create 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 of the problem early through an issue report but has not responded yet.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 31% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
Open5GS · Open5gs
2.7.0; 2.7.1; 2.7.2; 2.7.3; 2.7.4; 2.7.5; +2 more · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-8268
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-8268
Product
https://github.com/open5gs/open5gs/
Exploit
https://github.com/open5gs/open5gs/issues/4449
Third Party Advisory
https://vuldb.com/submit/808485
Third Party Advisory
https://vuldb.com/vuln/362565
Permissions Required
https://vuldb.com/vuln/362565/cti
More from Open5GS
9.8
CVE-2026-2522
Open5GS MME esm-build.c memory corruption
9.8
CVE-2026-2521
Open5GS SGW-C sgwc_s5c_handle_create_session_response memory corruption
9.8
CVE-2024-40130
open5gs v2.6.4 is vulnerable to Buffer Overflow
9.8
CVE-2024-40129
Open5GS v2.6.4 is vulnerable to Buffer Overflow
9.8
CVE-2021-28122
A request-validation issue was discovered in Open5GS 2.1.3 through 2.2.x before 2.2.1