CVE-2026-2476 Vulnerability Analysis & Exploit Details

CVE-2026-2476
Vulnerability Scoring

7.6
/10
Very High Risk

Highly exploitable, CVE-2026-2476 poses a critical security risk that could lead to severe breaches.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity or special conditions.
  • Attack Vector: Network
    Vulnerability is exploitable over a network without physical access.
  • Privileges Required: High
    High-level privileges are required for exploitation.
  • Scope: Changed
    Successful exploitation can impact components beyond the vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2026-2476 Details

Status: Analyzed

Last updated: 🕕 20 Mar 2026, 18:29 UTC
Originally published on: 🕑 16 Mar 2026, 14:19 UTC

Time between publication and last update: 4 days

CVSS Release: version 3

CVSS3 Source

responsibledisclosure@mattermost.com

CVSS3 Type

Secondary

CVSS3 Vector

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

CVE-2026-2476 Vulnerability Summary

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 plugin settings via exported configuration data. Mattermost Advisory ID: MMSA-2026-00606

Assessing the Risk of CVE-2026-2476

Access Complexity Graph

The exploitability of CVE-2026-2476 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2026-2476

The exploitability of CVE-2026-2476 is influenced by multiple factors. Security teams should analyze system configurations and apply appropriate countermeasures to mitigate threats.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2026-2476, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2026-2476, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: High
    Exploiting CVE-2026-2476 can result in unauthorized access to sensitive data, severely compromising data privacy.
  • Integrity: Low
    Exploiting CVE-2026-2476 may cause minor changes to data without severely impacting its accuracy.
  • Availability: None
    CVE-2026-2476 does not impact system availability.

CVE-2026-2476 References

External References

CWE Common Weakness Enumeration

NVD-CWE-noinfo

Vulnerable Configurations

  • cpe:2.3:a:mattermost:ms_teams:0.0.1:-:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:0.0.1:-:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:0.0.1:alpha:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:0.0.1:alpha:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:0.2.0:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:0.2.0:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:0.2.1:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:0.2.1:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:0.3.0:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:0.3.0:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:0.3.1:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:0.3.1:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:0.3.2:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:0.3.2:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:0.3.3:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:0.3.3:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:0.3.4:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:0.3.4:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:0.3.5:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:0.3.5:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:0.3.6:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:0.3.6:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:0.3.7:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:0.3.7:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:0.3.8:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:0.3.8:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:0.3.9:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:0.3.9:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:0.3.10:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:0.3.10:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:0.3.11:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:0.3.11:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:0.3.12:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:0.3.12:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:0.3.13:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:0.3.13:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.0.0:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.0.0:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.0.1:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.0.1:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.0.2:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.0.2:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.0.3:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.0.3:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.0.4:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.0.4:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.0.5:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.0.5:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.0.6:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.0.6:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.0.7:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.0.7:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.0.8:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.0.8:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.1.0:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.1.0:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.1.1:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.1.1:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.2.0:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.2.0:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.2.1:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.2.1:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.2.2:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.2.2:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.3.0:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.3.0:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.3.1:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.3.1:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.4.0:-:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.4.0:-:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.4.0:rc1:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.4.0:rc1:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.5.0:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.5.0:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.5.1:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.5.1:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.5.2:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.5.2:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.5.3:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.5.3:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.6.0:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.6.0:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.6.1:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.6.1:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.7.0:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.7.0:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.7.1:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.7.1:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.8.0:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.8.0:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.8.1:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.8.1:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.8.2:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.8.2:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.9.0:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.9.0:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.9.1:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.9.1:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.10.0:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.10.0:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.10.1:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.10.1:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.10.2:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.10.2:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.11.0:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.11.0:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.11.1:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.11.1:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.12.0:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.12.0:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.12.1:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.12.1:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.12.2:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.12.2:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.12.3:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.12.3:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.13.0:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.13.0:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.14.0:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.14.0:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:1.15.0:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:1.15.0:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:2.0.0:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:2.0.0:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:2.0.1:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:2.0.1:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:2.0.2:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:2.0.2:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:2.0.3:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:2.0.3:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:2.1.0:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:2.1.0:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:2.1.1:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:2.1.1:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:2.2.0:-:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:2.2.0:-:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:2.2.0:rc1:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:2.2.0:rc1:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:2.2.0:rc10:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:2.2.0:rc10:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:2.2.0:rc11:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:2.2.0:rc11:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:2.2.0:rc12:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:2.2.0:rc12:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:2.2.0:rc13:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:2.2.0:rc13:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:2.2.0:rc14:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:2.2.0:rc14:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:2.2.0:rc15:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:2.2.0:rc15:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:2.2.0:rc16:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:2.2.0:rc16:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:2.2.0:rc17:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:2.2.0:rc17:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:2.2.0:rc2:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:2.2.0:rc2:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:2.2.0:rc3:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:2.2.0:rc3:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:2.2.0:rc4:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:2.2.0:rc4:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:2.2.0:rc5:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:2.2.0:rc5:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:2.2.0:rc6:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:2.2.0:rc6:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:2.2.0:rc7:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:2.2.0:rc7:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:2.2.0:rc8:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:2.2.0:rc8:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:2.2.0:rc9:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:2.2.0:rc9:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:2.2.1:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:2.2.1:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:2.2.2:*:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:2.2.2:*:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:2.3.0:-:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:2.3.0:-:*:*:*:mattermost:*:*
  • cpe:2.3:a:mattermost:ms_teams:2.3.0:rc1:*:*:*:mattermost:*:*
    cpe:2.3:a:mattermost:ms_teams:2.3.0:rc1:*:*:*:mattermost:*:*

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