{"id":"CVE-2026-116543","revision":"3ed9d6e7cbe644cf977949065d3f6ac2","records":[{"revision":"3ed9d6e7cbe644cf977949065d3f6ac2","observedAt":"2026-10-26T16:35:30.797+00:00","statement":{"source":"cve-program","id":"CVE-2026-116543","aliases":[],"title":"Open5GS 1.3.0 through 2.8.0 Heap Out-of-Bounds Write via SBI Multipart Parser","description":"Open5GS 1.3.0 through 2.8.0 contains a heap out-of-bounds write vulnerability in parse_multipart() that allows unauthenticated attackers to corrupt memory by supplying an empty multipart boundary. Attackers can send a single crafted multipart/related request to the SBI interface of any network function, overflowing the lookbehind buffer and crashing it.","state":0,"publishedAt":"2026-10-26T14:59:42.212+00:00","modifiedAt":"2026-10-26T14:59:42.212+00:00","affected":[{"ecosystem":"Vendor product","name":"open5gs","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"open5gs\",\n                    \"product\": \"open5gs\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://github.com/open5gs/open5gs\",\n                    \"versions\": [\n                        {\n                            \"version\": \"1.3.0\",\n                            \"lessThanOrEqual\": \"2.8.0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","score":8.7,"severity":"HIGH"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://github.com/open5gs/open5gs/security/advisories/GHSA-25v2-v588-jq8g","https://github.com/open5gs/open5gs/commit/6820c2743b5b5e126e3755d2f92dae2b236732df","https://github.com/open5gs/open5gs/blob/v2.8.0/lib/sbi/message.c#L3372","https://github.com/open5gs/open5gs/blob/v2.8.0/lib/sbi/contrib/multipart_parser.c#L260","https://github.com/open5gs/open5gs","https://www.vulncheck.com/advisories/open5gs-1.3.0-through-2.8.0-heap-out-of-bounds-write-via-sbi-multipart-parser"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-116543","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-116543","identifiers":["CVE-2026-116543"]},"retained":false,"historicalAffected":[]}],"coverage":[]}