{"id":"CVE-2026-1736","summary":"Open5GS SGWC s11-handler.c assertion","details":"A security vulnerability has been detected in Open5GS up to 2.7.6. Impacted is the function sgwc_s11_handle_create_indirect_data_forwarding_tunnel_request of the file /src/sgwc/s11-handler.c of the component SGWC. Such manipulation leads to reachable assertion. The attack may be launched remotely. The exploit has been disclosed publicly and may be used. A patch should be applied to remediate this issue. The issue report is flagged as already-fixed.","modified":"2026-08-12T03:51:14.188365192Z","published":"2026-02-02T00:32:06.984Z","database_specific":{"cwe_ids":["CWE-617"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/1xxx/CVE-2026-1736.json","unresolved_ranges":[{"extracted_events":[{"introduced":"2.7.3"},{"last_affected":"2.7.3"},{"introduced":"2.7.4"},{"last_affected":"2.7.4"}],"source":"AFFECTED_FIELD"}],"cna_assigner":"VulDB"},"references":[{"type":"WEB","url":"https://github.com/open5gs/open5gs/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/1xxx/CVE-2026-1736.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-1736"},{"type":"ADVISORY","url":"https://vuldb.com/?id.343635"},{"type":"ADVISORY","url":"https://vuldb.com/?submit.741191"},{"type":"REPORT","url":"https://github.com/open5gs/open5gs/issues/4270"},{"type":"REPORT","url":"https://github.com/open5gs/open5gs/issues/4270#event-21968624624"},{"type":"REPORT","url":"https://github.com/open5gs/open5gs/issues/4270#issue-3795141303"},{"type":"REPORT","url":"https://vuldb.com/?ctiid.343635"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/open5gs/open5gs","events":[{"introduced":"83e35bb2de7e67646fdba849580184422b10006a"},{"last_affected":"d9d3abdd480be96fac3bc8a997e83446648763ca"}],"database_specific":{"cpe":"cpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"2.7.0"},{"last_affected":"2.7.0"},{"introduced":"2.7.1"},{"last_affected":"2.7.1"},{"introduced":"2.7.2"},{"last_affected":"2.7.2"},{"introduced":"2.7.5"},{"last_affected":"2.7.5"},{"introduced":"2.7.6"},{"last_affected":"2.7.6"},{"introduced":"0"}],"source":["AFFECTED_FIELD","CPE_RANGE"]}}],"versions":["2.7.0","2.7.1","2.7.2","2.7.5","2.7.6","v2.7.6","v2.7.5","v2.7.2","v2.7.1","v2.7.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-1736.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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/E:P"}]}