{"id":"CVE-2026-111653","summary":"53AIHub through 0.5.3 Missing Authentication via PUT /api/enterprises/:id","details":"53AIHub through 0.5.3 contains a missing authentication vulnerability that allows unauthenticated attackers to overwrite any enterprise's profile by sending PUT requests to /api/enterprises/:id. Because UpdateEnterprise only enforces checks when IS_SAAS is true, attackers can enumerate sequential enterprise IDs and overwrite logos, display names and branding for defacement and phishing.","modified":"2026-10-21T02:55:49.407483712Z","published":"2026-10-16T17:39:20.030Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-306"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111653.json"},"references":[{"type":"PACKAGE","url":"https://github.com/53AI/53AIHub"},{"type":"ARTICLE","url":"https://github.com/53AI/53AIHub/blob/v0.5.3/api/controller/enterprise.go#L122-L160"},{"type":"ARTICLE","url":"https://github.com/53AI/53AIHub/blob/v0.5.3/api/router/api.go#L54-L66"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111653.json"},{"type":"ADVISORY","url":"https://hackmd.io/@hieuPenguinnn/53aihub-unauth-cross-tenant-enterprise-update"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-111653"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/53aihub-through-0.5.3-missing-authentication-via-put-api-enterprises-id"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/53ai/53aihub","events":[{"introduced":"0"},{"last_affected":"27bdc89569ab0a4a9a2042fc9d8f27bda5419ccc"}],"database_specific":{"extracted_events":[{"range":[{"introduced":"0"},{"last_affected":"0.5.3"}],"source":"AFFECTED_FIELD","strategy":"StandardRange"}]}}],"versions":["v0.5.3","v0.5.2","v0.5.1","v0.5.0","v0.4.2","v0.4.1","v0.4.0","v0.1.5","v0.1.3","v0.1.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-111653.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N"}]}