CVE-2026-2476Disclosure(mattermost / ms_teams)

LOWCVSS 4.3 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

Patch mattermost ms_teams systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD 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

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0.5/ 10 priority

Sources & remediation

Vendor / third-party advisories

https://mattermost.com/security-updates

Weakness type (CWE)

CWE-200

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

ms_teams

Threat summary

Patch or workaround signal is available
2 mentions across 2 observed days
Momentum state: stable

What's happening

Patch or workaround mentioned in 1 signal
Technical details provided in 2 signals
Disclosure: 2 classified signals
Peaked 1d ago at 1 mentions (2026-03-16); latest day: 1
2 total mentions across 2 days

Affected systems

Vendors

mattermost

Products

ms_teams

Deep dive

Activity timeline2 mentions / 2d

Signal classification1 categories

Disclosure

2100.0%

Referenced assets2 URLs

By indicator

Full discourse2 posts

PulsePatch.io@pulsepatchio198d
Disclosure
The `Mattermost Microsoft Teams Plugin` (CVE-2026-2476) exposes sensitive configuration values, risking information disclosure. Review server access controls and monitor for updates. #Mattermost #Teams #infosec https://www.pulsepatch.io/posts/cve-2026-2476-mattermost-microsoft-teams-plugin-config-exposure
Post summary
The post announces CVE‑2026‑2476, an information‑disclosure vulnerability in the Mattermost Microsoft Teams Plugin, and urges administrators to review access controls and stay updated on patches.
0000036
2 followersView on X
CVE@CVEnew206d
Disclosure
CVE-2026-2476 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 pl… https://www.cve.org/CVERecord?id=CVE-2026-2476
Post summary
The CVE discloses that Mattermost plugins up to version 2.0.3.0 improperly mask sensitive configuration values, enabling attackers with support packet access to retrieve original configuration data.
00000132
56.7K followersView on X

CPE platform detail1 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

1 of 1 entries

Part	Vendor	Product	Version	Target SW	Target HW
App	mattermost	ms_teams	-	mattermost	-

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