CVE-2024-52032Network attack vector

Private channel-name disclosure via incomplete query filtering

Published Nov 9, 2024 · Updated Nov 12, 2024

Information disclosure in Mattermost 9.11.0 through 9.11.2 and 10.0.0 allows remote authenticated users to read private channel names. The channel-switcher search path sends an Elasticsearch query that fails to apply the requesting user's channel-membership restrictions. Exposure requires Elasticsearch v8 search to be enabled and leaks names only; no channel contents, writes, or service interruption are reported.

CVSS severity4.3
Medium
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Mattermost 9.11.0 through 9.11.2 and 10.0.0 allows remote authenticated users to read private channel names. The channel-switcher search path sends an Elasticsearch query that fails to apply the requesting user's channel-membership restrictions. Exposure requires Elasticsearch v8 search to be enabled and leaks names only; no channel contents, writes, or service interruption are reported.

The record

CVE
CVE-2024-52032
Published
Nov 9, 2024
Updated
Nov 12, 2024
Vendor
Mattermost
Product
Mattermost
Classifications
CWE-200
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 9, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 12, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.0.0
  2. Affected versionversion=9.11.0 <=9.11.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Mattermost · Mattermostversion=10.0.0; version=9.11.0 <=9.11.2

Published CVSS scores

4.3Mattermost, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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