{"id":"CVE-2023-5969","summary":" Denial of Service via Link Preview in /api/v4/redirect_location","details":"Mattermost fails to properly sanitize the request to /api/v4/redirect_location allowing an attacker, sending a specially crafted request to /api/v4/redirect_location, to fill up the memory due to caching large items.\n\n","aliases":["GHSA-w496-f5qq-m58j"],"modified":"2026-08-12T03:51:29.161228786Z","published":"2023-11-06T15:48:23.590Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/5xxx/CVE-2023-5969.json","unresolved_ranges":[{"extracted_events":[{"last_affected":"7.8.11"},{"last_affected":"8.0.3"},{"last_affected":"8.1.2"},{"last_affected":"9.0.0"}],"source":"AFFECTED_FIELD"}],"cna_assigner":"Mattermost","cwe_ids":["CWE-400"]},"references":[{"type":"WEB","url":"https://mattermost.com/security-updates"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/5xxx/CVE-2023-5969.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-5969"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mattermost/mattermost","events":[{"introduced":"0"},{"last_affected":"58a74d76295680a5bb684f795e21970ab53fee1d"},{"introduced":"90f502dc2dc80ee25cfb7d7bc3e743b53564a5a7"},{"last_affected":"ce6e98b51cbf6fb688b0a453b05634ddd0d00085"},{"introduced":"096c9ea12a2144f832e330e9a0f4d3862ca20b9f"},{"last_affected":"9d2d03594f2ebca50ae47161ab9a22059f751fb8"},{"introduced":"987e843629fe3f11861fda23ceb66884f5973ef1"},{"last_affected":"987e843629fe3f11861fda23ceb66884f5973ef1"}],"database_specific":{"source":["CPE_RANGE","CPE_STRING"],"cpe":["cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*","cpe:2.3:a:mattermost:mattermost:9.0.0:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"0"},{"last_affected":"7.8.11"},{"introduced":"8.0.0"},{"last_affected":"8.0.3"},{"introduced":"8.1.0"},{"last_affected":"8.1.2"},{"introduced":"9.0.0"},{"last_affected":"9.0.0"}]}}],"versions":["9.0.0","v9.0.0-rc2","v9.0.0","@mattermost/types@9.0.0","@mattermost/client@9.0.0","v8.0.3-rc1","v8.0.3","v8.1.2-rc2","v8.1.2","v7.8.11-rc1","v7.8.11","v8.1.2-rc1","v8.0.2-rc3","v8.0.2","@mattermost/types@8.0.0","@mattermost/client@8.0.0","v7.8.10-rc5","v7.8.10","v8.1.1-rc2","v8.1.1","@mattermost/types@8.1.1","@mattermost/client@8.1.1","v7.8.10-rc4","v8.0.2-rc2","v8.1.1-rc1","v7.8.10-rc3","v8.1.0-rc2","v8.1.0","v7.8.9","v8.0.1","v8.0.0","v7.8.8","v7.8.7","v7.8.6","v7.8.5","v7.8.4","v7.8.3","v7.8.2","v7.8.1","v7.8.0","cloud-2023-01-26-1","cloud-2022-11-24-1","cloud-2022-11-11-1","cloud-2022-10-06-1","cloud-2022-09-08-1","cloud-2022-08-10-1","cloud-2022-07-20-1","v5.2.0-rc2","v5.2.0-rc1","v5.1.0-rc1","v5.0.0-rc1","v4.10.0-rc1","v4.9.0-rc1","v4.8.0-rc1","v4.7.0-rc1","v4.6.0-rc2","v4.6.0-rc1","v4.5.0-rc1","v4.4.0-rc1","v4.3.0-rc1","v4.2.0-rc1","v0.5.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-5969.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"}]}