CVE-2016-11080: Github.com/mattermost/mattermost server Mattermost Server Exposes Account Details Vulnerability

MODERATE
Advisory Identifier: GHSA-g3f3-p9rc-775p
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CWE-200
Published
Advisory Summary

CVE-2016-11080 is a MODERATE mattermost server exposes account details vulnerability (CWE-200: Exposure of Sensitive Information to an Unauthorized Actor) affecting Github.com/mattermost/mattermost server libraries in the Go ecosystem. The issue involves mattermost server exposes account details to any team administrator. Remediation is available by upgrading affected packages to version 3.0.0.

CVE-2016-11080 at a Glance

CVE Identifier CVE-2016-11080
GHSA Identifier GHSA-g3f3-p9rc-775p
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Affected Product Github.com/mattermost/mattermost server
Package Ecosystem Go
Published Date
Last Updated

How to Fix CVE-2016-11080

To remediate this vulnerability, upgrade all affected Github.com/mattermost/mattermost server dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

github.com/mattermost/mattermost-server fixed: 3.0.0 
Upgrade github.com/mattermost/mattermost-server to 3.0.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for github.com/mattermost/mattermost-server

How to Check if You Are Affected

To determine whether your application is affected by CVE-2016-11080, inspect your project dependencies for Github.com/mattermost/mattermost server:

inspect dependencies for github.com/mattermost/mattermost-server

Analyze the terminal output to locate any version of Github.com/mattermost/mattermost server in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.0.0), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor, where the product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. In Github.com/mattermost/mattermost server, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

An issue was discovered in Mattermost Server before 3.0.0. It offers superfluous APIs for a Team Administrator to view account details.

CVE-2016-11080 Affected Github.com/mattermost/mattermost server Versions

1 component(s)
Fixed Versions:
3.0.0
Product / Package Ecosystem Affected Versions Fixed Version
github.com/mattermost/mattermost-server
golang/github.com/mattermost/mattermost-server
Go
< 3.0.0
3.0.0

References

NVD — CVE-2016-11080 NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-11080
Security Fix Commit FIX COMMIT
https://github.com/mattermost/mattermost/commit/6c75662b824491a20a757a5eec59556a866374b5
Github.com/mattermost/mattermost server Source Repository REPOSITORY
https://github.com/mattermost/mattermost
Github.com/mattermost/mattermost server Security Information SECURITY
https://mattermost.com/security-updates

Frequently Asked Questions

What is CVE-2016-11080?
CVE-2016-11080 is a security vulnerability in Github.com/mattermost/mattermost server involving Mattermost Server exposes account details to any Team Administrator under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor.
Which Github.com/mattermost/mattermost server versions are affected?
Affected versions include releases prior to 3.0.0 across affected packages: github.com/mattermost/mattermost-server.
What version fixes CVE-2016-11080?
Upgrading to 3.0.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/mattermost/mattermost-server affected?
Yes, github.com/mattermost/mattermost-server is affected in releases prior to 3.0.0. Upgrade your dependency to 3.0.0 or later.
What CWE is associated with CVE-2016-11080?
CVE-2016-11080 is classified under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor (The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.).
How can I check Go dependencies for CVE-2016-11080?
Run the dependency tree command: 'inspect dependencies for github.com/mattermost/mattermost-server'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-g3f3-p9rc-775p",
  "modified" : "2025-10-22T21:46:32Z",
  "published" : "2022-05-24T17:21:02Z",
  "aliases" : [ "CVE-2016-11080" ],
  "summary" : "Mattermost Server exposes account details to any Team Administrator",
  "details" : "An issue was discovered in Mattermost Server before 3.0.0. It offers superfluous APIs for a Team Administrator to view account details.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/mattermost/mattermost-server"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.0.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2016-11080"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/mattermost/mattermost/commit/6c75662b824491a20a757a5eec59556a866374b5"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/mattermost/mattermost"
  }, {
    "type" : "WEB",
    "url" : "https://mattermost.com/security-updates"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-10-22T21:46:32Z",
    "nvd_published_at" : "2020-06-19T20:15:00Z"
  }
}