Vulnerability · Published May 30, 2026 · Assigned by VulDB
CVE-2026-10117Open5GS nghttp2-server.c ogs_pool_id_calloc denial of service
Medium 4.3
In plain English
A medium-severity security flaw in Open5GS. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 19% of all known vulnerabilities).
Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.3%top 80.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A weakness has been identified in Open5GS up to 2.7.7. This issue affects the function ogs_pool_id_calloc in the library /lib/sbi/nghttp2-server.c. Executing a manipulation can lead to denial of service. The attack may be launched remotely. The exploit has been made available to the public and could be used for attacks. It is best practice to apply a patch to resolve this issue.
Affected products (as reported)
Weakness: CWE-404 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
References
- VDB-367295 | Open5GS nghttp2-server.c ogs_pool_id_calloc denial of service vdb-entry, technical-description
- VDB-367295 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- Submit #818586 | Open5GS NRF/UDM/UDR/NSSF/BSF/PCF/AMF/AUSF/SMF v2.7.7 Denial of Service third-party-advisory
- https://github.com/open5gs/open5gs/issues/4474 exploit, issue-tracking
- https://github.com/open5gs/open5gs/ product