{"id":"CVE-2024-9155","summary":"Insufficient Authorization On Unlinked Channel Files","details":"Mattermost versions 9.10.x \u003c= 9.10.1, 9.9.x \u003c= 9.9.2, 9.5.x \u003c= 9.5.8 fail to limit access to channels files that have not been linked to a post which allows an attacker to view them in channels that they are a member of.","modified":"2026-08-12T03:51:19.286126932Z","published":"2024-09-26T14:57:43.987Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/9xxx/CVE-2024-9155.json","unresolved_ranges":[{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"9.10.0"},{"last_affected":"9.10.1"},{"introduced":"9.9.0"},{"last_affected":"9.9.2"},{"introduced":"9.5.0"},{"last_affected":"9.5.8"}]}],"cna_assigner":"Mattermost","cwe_ids":["CWE-863"]},"references":[{"type":"WEB","url":"https://mattermost.com/security-updates"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/9xxx/CVE-2024-9155.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-9155"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mattermost/mattermost","events":[{"introduced":"99d819d25d0b16b3faed901b1fe5c41de7655e9c"},{"fixed":"e8de27b043b2971472f30cb2e6c77bf4f8978486"},{"introduced":"4179e17b491ec5292ca6e157d7b216b464bce397"},{"fixed":"8f059c576a6fec5dad8b8b1e62bf2a5602081401"},{"introduced":"60c5bb46dfa8192efa5a13c746423f0e7696b8bc"},{"fixed":"3b1cbb8015fed0484e573d78e3b0fd28f2fc8b91"}],"database_specific":{"source":"CPE_RANGE","cpe":"cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"9.5.0"},{"fixed":"9.5.9"},{"introduced":"9.9.0"},{"fixed":"9.9.3"},{"introduced":"9.10.0"},{"fixed":"9.10.2"}]}}],"versions":["v9.9.2-rc2","v9.9.2","v9.5.8-rc2","v9.5.8","v9.10.1-rc3","v9.10.1","v9.10.1-rc2","v9.5.8-rc1","v9.9.2-rc1","v9.10.1-rc1","v9.5.7-rc3","v9.5.7","v9.10.0-rc3","v9.10.0","@mattermost/types@9.10.0","@mattermost/client@9.10.0","v9.9.1-rc4","v9.9.1","v9.9.1-rc3","v9.5.7-rc2","v9.9.1-rc2","v9.9.1-rc1","v9.5.7-rc1","v9.5.6","v9.9.0-rc4","v9.9.0","@mattermost/types@9.9.0","@mattermost/client@9.9.0","v9.5.6-rc2","v9.5.6-rc1","v9.5.5-rc1","v9.5.5","v9.5.4-rc2","v9.5.4","v9.5.4-rc1","v9.5.3","v9.5.3-rc3","v9.5.3-rc2","v9.5.3-rc1","v9.5.2","v9.5.1-rc1","v9.5.1","v9.5.0-rc3","v9.5.0","@mattermost/types@9.5.0","@mattermost/client@9.5.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-9155.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:N/A:N"}]}