{"id":"CVE-2026-79918","summary":"MaxKB: Sandbox escape via unhooked fexecve","details":"MaxKB is an open-source AI assistant for enterprise. Prior to version 2.10.6-lts, the ToolExecutor LD_PRELOAD sandbox hooks execve, execvpe, and execveat to prevent subprocess creation but does not hook fexecve. An authenticated attacker able to execute tool code can call fexecve to start a process outside the sandbox's intended subprocess policy. This issue is fixed in version 2.10.6-lts.","aliases":["GHSA-9mh9-v949-fwqh"],"modified":"2026-09-23T08:12:38.251214Z","published":"2026-09-21T20:47:13.575Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-693"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/79xxx/CVE-2026-79918.json"},"references":[{"type":"WEB","url":"https://github.com/1Panel-dev/MaxKB/releases/tag/v2.10.6-lts"},{"type":"ADVISORY","url":"https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-9mh9-v949-fwqh"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/79xxx/CVE-2026-79918.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-79918"},{"type":"FIX","url":"https://github.com/1Panel-dev/MaxKB/commit/6fa7947a85030b87977c4026f33af11ca10dd1e6"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/1panel-dev/maxkb","events":[{"introduced":"0"},{"fixed":"6fa7947a85030b87977c4026f33af11ca10dd1e6"},{"fixed":"9d6a5df3c9e500fdc8209b76c68ea96822f552a9"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"2.10.6-lts"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["v2.10.5-lts","v2.10.3-lts","v2.10.1-lts","v2.10.0-lts","v2.9.2","v2.9.1","v2.9.0","v2.8.1","v2.8.0","v2.7.0","v2.6.1","v2.6.0","v2.5.0","v2.4.0","v2.3.0","v2.2.0","v2.1.0","v2.0.2","v2.0.1","v2.0.0","v1.10.4-lts","v1.10.3-lts","v1.10.2-lts","v1.10.1-lts","v1.10.0-lts","v1.9.0","v1.7.0","v1.6.1","v1.6.0","v1.5.0","v1.4.0","v1.3.0","v1.2.1","v1.2.0","v1.1.3","v1.1.2","v1.1.1","v1.1.0","v1.0.1","v1.0.0","v0.9.1","v0.9.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-79918.json","vanir_signatures_modified":"2026-09-23T08:12:38Z","vanir_signatures":[{"digest":{"line_hashes":["75077052850177193177317574178903112073","62190396274156982111050170053442363881","83163469106024455835596739385331578573","320814248081691810098015520753740733475","339404758880186494566788410455630541648","46941268089219842115917306375112318350","63411014263650257390757000760049639375","309384069646534216607295468353953108823"],"threshold":0.9},"id":"CVE-2026-79918-e0b5ce7f","signature_type":"Line","signature_version":"v1","source":"https://github.com/1panel-dev/maxkb/commit/6fa7947a85030b87977c4026f33af11ca10dd1e6","target":{"file":"installer/sandbox.c"},"deprecated":false}]}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L"}]}