{"id":"CVE-2026-116543","published":"2026-10-26T16:17:19.830","lastModified":"2026-10-26T16:17:19.963","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.","cvssScore":7.5,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwes":["CWE-787"],"vendors":[],"products":[],"references":[{"url":"https://github.com/open5gs/open5gs","tags":[]},{"url":"https://github.com/open5gs/open5gs/blob/v2.8.0/lib/sbi/contrib/multipart_parser.c#L260","tags":[]},{"url":"https://github.com/open5gs/open5gs/blob/v2.8.0/lib/sbi/message.c#L3372","tags":[]},{"url":"https://github.com/open5gs/open5gs/commit/6820c2743b5b5e126e3755d2f92dae2b236732df","tags":[]},{"url":"https://github.com/open5gs/open5gs/security/advisories/GHSA-25v2-v588-jq8g","tags":[]},{"url":"https://www.vulncheck.com/advisories/open5gs-1.3.0-through-2.8.0-heap-out-of-bounds-write-via-sbi-multipart-parser","tags":[]}],"exploitRefs":[{"url":"https://github.com/open5gs/open5gs","tags":[]},{"url":"https://github.com/open5gs/open5gs/blob/v2.8.0/lib/sbi/contrib/multipart_parser.c#L260","tags":[]},{"url":"https://github.com/open5gs/open5gs/blob/v2.8.0/lib/sbi/message.c#L3372","tags":[]},{"url":"https://github.com/open5gs/open5gs/commit/6820c2743b5b5e126e3755d2f92dae2b236732df","tags":[]},{"url":"https://github.com/open5gs/open5gs/security/advisories/GHSA-25v2-v588-jq8g","tags":[]}],"hasPoc":true,"ai":null}