{"cve":"CVE-2024-4182","nvd":{"published":"2024-04-26T09:15:12.523","modified":"2026-06-17T08:01:17.083","status":"Analyzed","description":"Mattermost versions 9.6.0, 9.5.x before 9.5.3, 9.4.x before 9.4.5, and 8.1.x before 8.1.12 fail to handle JSON parsing errors in custom status values, which allows an authenticated attacker to crash other users' web clients via a malformed custom status.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","score":4.3},"cwes":["CWE-754"],"references":["https://mattermost.com/security-updates","https://mattermost.com/security-updates"],"products":["mattermost:mattermost_server"],"source":"nvd","synced_at":"2026-10-19T21:49:08.435428910+00:00"},"epss":{"cve":"CVE-2024-4182","score":0.00552,"percentile":0.46144,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-8f99-g2pj-x8w3","url":"https://osv.dev/vulnerability/GHSA-8f99-g2pj-x8w3","summary":"Mattermost crashes web clients via a malformed custom status","modified":"2024-06-05T16:43:16.600027Z","packages":[{"ecosystem":"Go","name":"github.com/mattermost/mattermost-server","purl":"pkg:golang/github.com/mattermost/mattermost-server","ranges":[">=8.1.0 <8.1.12"],"fixed":["8.1.12"]},{"ecosystem":"Go","name":"github.com/mattermost/mattermost-server","purl":"pkg:golang/github.com/mattermost/mattermost-server","ranges":[">=9.4.0 <9.4.5"],"fixed":["9.4.5"]},{"ecosystem":"Go","name":"github.com/mattermost/mattermost-server","purl":"pkg:golang/github.com/mattermost/mattermost-server","ranges":[">=9.5.0 <9.5.3"],"fixed":["9.5.3"]},{"ecosystem":"Go","name":"github.com/mattermost/mattermost-server","purl":"pkg:golang/github.com/mattermost/mattermost-server","ranges":[">=9.6.0-rc1 <9.6.1"],"fixed":["9.6.1"]}]},{"id":"GO-2024-2795","url":"https://osv.dev/vulnerability/GO-2024-2795","summary":"Mattermost crashes web clients via a malformed custom status in github.com/mattermost/mattermost-server","modified":"2026-03-03T04:55:17.634463Z","packages":[{"ecosystem":"Go","name":"github.com/mattermost/mattermost-server","purl":"pkg:golang/github.com/mattermost/mattermost-server","ranges":[">=8.1.0+incompatible <8.1.12+incompatible",">=9.4.0+incompatible <9.4.5+incompatible",">=9.5.0+incompatible <9.5.3+incompatible",">=9.6.0-rc1+incompatible <9.6.1+incompatible"],"fixed":["8.1.12+incompatible","9.4.5+incompatible","9.5.3+incompatible","9.6.1+incompatible"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}