{"id":"CVE-2026-55843","aliases":["GHSA-j5g3-42wp-gqm3"],"url":"https://o3.security/vulnerability/CVE-2026-55843","summary":"Snipe-IT: Improper Privilege Management","details":"## Impact\n\nThe `update()` method in `UsersController` passes the `permission` request field unconditionally to `NormalizePermissionsPayloadAction`, which returns an empty array when the field is absent. The result is passed to `PreserveUnauthorizedPrivilegedPermissionsAction`, which selectively restores only the `superuser` key (when the editor is not a superuser) and the `admin` key (when the editor is neither admin nor superuser). All other permissions — including the `admin` flag itself when the editing user is an admin — are discarded and `$user->permissions` is overwritten with the sparse result.\n\nThe `canEditAuthFields` gate permits admins to update other non-superuser accounts (including other admins). When an admin sends a `PUT /users/{id}` request for another admin without including the `permission` field, the target's `admin` flag and all granular permissions are permanently destroyed. The target loses administrative access entirely with no error, warning, or out-of-band notification.\n\nA secondary, lower-impact path exists for non-admin users holding the `users.edit` permission: they may target regular (non-admin, non-superuser) accounts and wipe all granular permissions in the same way.\n\n### Patches\nPatched in https://github.com/grokability/snipe-it/commit/1cff2d67aabd00ee51d864c1d7fb717494c1d6ad","published":"2026-07-10T18:33:09.250Z","modified":"2026-08-27T03:57:11.623634358Z","cvss":null,"epss":{"score":0.0054,"percentile":0.44147,"asOf":"2026-09-17"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"snipe/snipe-it","fixedVersion":"8.6.0"}],"fix":{"url":"https://github.com/grokability/snipe-it/commit/1cff2d67aabd00ee51d864c1d7fb717494c1d6ad","label":"grokability/snipe-it@1cff2d6"},"references":[{"type":"WEB","url":"https://github.com/grokability/snipe-it/releases/tag/v8.6.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/55xxx/CVE-2026-55843.json"},{"type":"ADVISORY","url":"https://github.com/grokability/snipe-it/security/advisories/GHSA-j5g3-42wp-gqm3"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55843"},{"type":"FIX","url":"https://github.com/grokability/snipe-it/commit/1cff2d67aabd00ee51d864c1d7fb717494c1d6ad"},{"type":"PACKAGE","url":"https://github.com/grokability/snipe-it"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-27T03:57:11.623634358Z"}}