CVE-2026-2476

Name: CVE-2026-2476
Creator: NVD / NIST
Published: 2026-03-16T14:19:30.373+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.18%

Last modified Jun 17, 2026

CVE-2026-2476 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. 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. EPSS estimates a 0.18% chance of exploitation in the next 30 days.

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

Metrics

CVSS 3.1

4.3/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS Probability

0.18%

7.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
Mattermost	Ms Teams	< 2.3.1

References

https://mattermost.com/security-updatesVendor Advisory

Timeline

Published: Mar 16, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-2476?

How severe is CVE-2026-2476?

CVE-2026-2476 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.18% probability of exploitation in the next 30 days.

How do I fix CVE-2026-2476?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-2476?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST