{"id":"CVE-2025-49810","summary":"Thread summarization allows persistent access to channel","details":"Mattermost versions 10.5.x \u003c= 10.5.8 fail to validate access controls at time of access which allows user to read a thread via AI posts","aliases":["GHSA-pwvr-grqg-7vp2","GO-2025-3903"],"modified":"2026-08-12T03:51:08.094208090Z","published":"2025-08-21T07:15:27.928Z","database_specific":{"cna_assigner":"Mattermost","cwe_ids":["CWE-863"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/49xxx/CVE-2025-49810.json","unresolved_ranges":[{"extracted_events":[{"introduced":"10.5.0"},{"last_affected":"10.5.8"}],"source":"AFFECTED_FIELD"}]},"references":[{"type":"WEB","url":"https://mattermost.com/security-updates"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/49xxx/CVE-2025-49810.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-49810"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mattermost/mattermost","events":[{"introduced":"58bd34fd34cbd7d3da777d627b6cffdf8a532930"},{"fixed":"c602a4a78e1f60b9a97ee5bce509ecad4177340c"}],"database_specific":{"extracted_events":[{"introduced":"10.5.0"},{"fixed":"10.5.9"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*"}}],"versions":["v10.5.9-rc4","v10.5.9-rc3","v10.5.9-rc2","v10.5.9-rc1","v10.5.8","v10.5.8-rc1","v10.5.7","v10.5.6-rc1","v10.5.6","v10.5.5","v10.5.5-rc1","v10.5.4-rc2","v10.5.4","v10.5.4-rc1","v10.5.3","v10.5.3-rc1","v10.5.2","v10.5.1","v10.5.1-rc2","v10.5.1-rc1","v10.5.0-rc6","v10.5.0","@mattermost/types@10.5.0","@mattermost/client@10.5.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-49810.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N"}]}