High severityNVD Advisory· Published Mar 16, 2026· Updated Mar 16, 2026
MS Teams plugin sensitive config values not properly masked in support packets
CVE-2026-2476
Description
Mattermost Plugins versions <=2.0.3.0 fail to properly mask sensitive configuration values which allows an attacker with access to support packets to obtain original plugin settings via exported configuration data. Mattermost Advisory ID: MMSA-2026-00606
AI Insight
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-plugin-msteamsGo | < 1.15.1-0.20260102165339-036c761bd3cb | 1.15.1-0.20260102165339-036c761bd3cb |
Affected products
3- ghsa-coords2 versionspkg:golang/github.com/mattermost/mattermost-plugin-msteamspkg:rpm/opensuse/govulncheck-vulndb&distro=openSUSE%20Leap%2015.6
< 1.15.1-0.20260102165339-036c761bd3cb+ 1 more
- (no CPE)range: < 1.15.1-0.20260102165339-036c761bd3cb
- (no CPE)range: < 0.0.20260326T203309-150000.1.155.2
- Range: 0
Patches
Vulnerability mechanics
References
4- github.com/advisories/GHSA-4ppj-6chv-5pgcghsaADVISORY
- mattermost.com/security-updatesghsavendor-advisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2026-2476ghsaADVISORY
- github.com/mattermost/mattermost-plugin-msteams/commit/036c761bd3cb9ece92c17f2b151dfa906cebdcf6ghsaWEB
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