{"id":"CVE-2026-107334","summary":"Incorrect Authorization in Malcolm","details":"Malcolm's nginx Lua role-based access control (RBAC) layer decides whether an authenticated user may reach a role-restricted path (e.g. /htadmin, /auth, /admin_login, /arkime/api/esadmin, NetBox, upload endpoints) by pattern-matching the raw, percent-encoded request URI. Nginx itself, however, selects which location block actually serves the request using the percent-decoded, normalized URI. Because the RBAC check never percent-decodes its input, an authenticated low-privilege user can request an admin-only path using percent-encoding (e.g. /%68tadmin.php) and have nginx route it to the restricted location while the Lua RBAC gate evaluating the un-decoded raw string finds no matching restriction and grants access.","aliases":["CVE-2026-107335","GHSA-jr6p-63pg-hr6g"],"modified":"2026-10-09T10:30:58.557489078Z","published":"2026-10-08T17:32:00.480Z","database_specific":{"cna_assigner":"icscert","cwe_ids":["CWE-863"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107334.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107334.json"},{"type":"WEB","url":"https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-280-01.json"},{"type":"ADVISORY","url":"https://github.com/cisagov/Malcolm/security/advisories/GHSA-jr6p-63pg-hr6g"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-107334"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/cisagov/malcolm","events":[{"introduced":"0"},{"last_affected":"2c19ef04d85230634ac70cc68b8f418a0666afec"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"0"},{"last_affected":"26.07.1"}]}}],"versions":["v26.07.1","v26.07.0","v26.06.1","v26.06.0","v26.05.2","v6.4.2","v6.4.1","v6.4.0","v5.2.4","v5.2.3","v5.2.2","v5.2.1","v3.0.1","v3.0.0","v2.6.1","v2.6.0","v2.5.0","v2.4.2","v2.4.1","v2.4.0.1","v2.4.0","v2.3.0","v2.2.1","v2.2.0","v2.1.1","v2.1.0","v2.0.6","v2.0.5","v2.0.4","v2.0.3","v2.0.2","v2.0.1","v2.0.0","v2.0.0-pre1","v1.8.1","v1.8.0","v1.7.2","v1.7.1a","v1.7.1","v1.7.0","v1.6.0","v1.5.2","v1.5.1","v1.5.0","v1.4.0","v1.3.1","v1.3.0","v1.2.2","v1.2.1","v1.2.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-107334.json"}}],"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:N"}]}