{"id":"CVE-2026-78156","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-78156","summary":"Open5GS S6a Authentication-Information-Request hss-s6a-path.c hss_ogs_diam_s6a_air_cb heap-based overflow","details":"A security vulnerability has been detected in Open5GS 2.8.0. Affected by this issue is the function hss_ogs_diam_s6a_air_cb of the file src/hss/hss-s6a-path.c of the component S6a Authentication-Information-Request Handler. Such manipulation of the argument Visited-PLMN-Id leads to heap-based buffer overflow. The attack may be performed from remote. The name of the patch is a9c82ee0b590d76a581b0580cb46b598984e2392. A patch should be applied to remediate this issue.","published":"2026-08-23T23:45:09.676Z","modified":"2026-08-24T11:47:19.331658438Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/open5gs/open5gs/commit/a9c82ee0b590d76a581b0580cb46b598984e2392","label":"open5gs/open5gs@a9c82ee"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/78xxx/CVE-2026-78156.json"},{"type":"WEB","url":"https://github.com/open5gs/open5gs/"},{"type":"FIX","url":"https://github.com/open5gs/open5gs/commit/a9c82ee0b590d76a581b0580cb46b598984e2392"},{"type":"REPORT","url":"https://github.com/open5gs/open5gs/issues/4661"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-78156"},{"type":"ADVISORY","url":"https://vuldb.com/cve/CVE-2026-78156"},{"type":"ADVISORY","url":"https://vuldb.com/submit/882951"},{"type":"ADVISORY","url":"https://vuldb.com/vuln/394539"},{"type":"REPORT","url":"https://vuldb.com/vuln/394539/cti"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-24T11:47:19.331658438Z"}}