Medium severity4.3NVD Advisory· Published Mar 31, 2023· Updated Jun 17, 2026
CVE-2023-1775
CVE-2023-1775
Description
When running in a High Availability configuration, Mattermost fails to sanitize some of the user_updated and post_deleted events broadcast to all users, leading to disclosure of sensitive information to some of the users with currently connected Websocket clients.
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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 | >= 3.3.0, < 7.1.6 | 7.1.6 |
github.com/mattermost/mattermost-serverGo | >= 7.7.0, < 7.7.2 | 7.7.2 |
github.com/mattermost/mattermost-serverGo | >= 7.1.0, < 7.1.6 | 7.1.6 |
github.com/mattermost/mattermost-server/v5Go | >= 5.0.0, < 7.1.6 | 7.1.6 |
github.com/mattermost/mattermost-server/v6Go | >= 6.0.0, < 7.1.6 | 7.1.6 |
Affected products
7cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*range: <7.1.6
- cpe:2.3:a:mattermost:mattermost_server:7.7.1:*:*:*:*:*:*:*
- (no CPE)range: 3.3.0
- osv-coords4 versionspkg:bitnami/mattermostpkg:golang/github.com/mattermost/mattermost-serverpkg:golang/github.com/mattermost/mattermost-server/v5pkg:golang/github.com/mattermost/mattermost-server/v6
< 7.1.6+ 3 more
- (no CPE)range: < 7.1.6
- (no CPE)range: >= 3.3.0, < 7.1.6
- (no CPE)range: >= 5.0.0, < 7.1.6
- (no CPE)range: >= 6.0.0, < 7.1.6
Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-8jhh-3jf2-pfwrghsaADVISORY
- mattermost.com/security-updates/nvdVendor Advisory
- nvd.nist.gov/vuln/detail/CVE-2023-1775ghsaADVISORY
- github.com.mattermost/mattermost-serverghsaPACKAGE
- mattermost.com/security-updatesghsaWEB
News mentions
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