Medium severity4.3NVD Advisory· Published Apr 26, 2024· Updated Jun 17, 2026
CVE-2024-4182
CVE-2024-4182
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.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/mattermost/mattermost-serverGo | >= 8.1.0, < 8.1.12 | 8.1.12 |
github.com/mattermost/mattermost-serverGo | >= 9.4.0, < 9.4.5 | 9.4.5 |
github.com/mattermost/mattermost-serverGo | >= 9.5.0, < 9.5.3 | 9.5.3 |
github.com/mattermost/mattermost-serverGo | >= 9.6.0-rc1, < 9.6.1 | 9.6.1 |
Affected products
3cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*range: >=8.1.0,<8.1.12
- (no CPE)range: 9.6.0
Patches
Vulnerability mechanics
References
7- github.com/advisories/GHSA-8f99-g2pj-x8w3ghsaADVISORY
- mattermost.com/security-updatesnvdVendor AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2024-4182ghsaADVISORY
- github.com/mattermost/mattermost/commit/41333a0babf565453d89287549bec1e546e75ce7ghsaWEB
- github.com/mattermost/mattermost/commit/6cbab0f7ece104681f73dd12c75d9f22d567125eghsaWEB
- github.com/mattermost/mattermost/commit/a99dadd80c57d376185ca06f8f70919a6f135bc6ghsaWEB
- github.com/mattermost/mattermost/commit/f84f8ed65f6a5faba974426424b684635455a527ghsaWEB
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