Private channel names leaking when Elasticsearch is enabled
Priority LOW 20CWE-200Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-200.
Summary
Mattermost versions 10.0.x <= 10.0.0 and 9.11.x <= 9.11.2 fail to properly query ElasticSearch when searching for the channel name in channel switcher which allows an attacker to get private channels names of channels that they are not a member of, when Elasticsearch v8 was enabled.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00296 22nd percentileScored 2026-11-07
Fix Fixed Mattermost (Mattermost): 10.1.0, 10.0.1, 9.11.3
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Mattermost | Mattermost | 10.0.0; 9.11.0 – 9.11.2 | 10.1.0, 10.0.1, 9.11.3 | Patch available | CNA |
- Mattermost VendorMattermost Affected 10.0.0; 9.11.0 – 9.11.2 Fixed in 10.1.0, 10.0.1, 9.11.3 Patch available CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* | 9.11.0 to before 9.11.3 | Vulnerable | Mattermost |
| cpe:2.3:a:mattermost:mattermost_server:10.0.0:-:*:*:*:*:*:* | 10.0.0 | Vulnerable | Mattermost |
| cpe:2.3:a:mattermost:mattermost_server:10.0.0:rc1:*:*:*:*:*:* | 10.0.0 rc1 | Vulnerable | Mattermost |
| cpe:2.3:a:mattermost:mattermost_server:10.0.0:rc2:*:*:*:*:*:* | 10.0.0 rc2 | Vulnerable | Mattermost |
| cpe:2.3:a:mattermost:mattermost_server:10.0.0:rc3:*:*:*:*:*:* | 10.0.0 rc3 | Vulnerable | Mattermost |
| cpe:2.3:a:mattermost:mattermost_server:10.0.0:rc4:*:*:*:*:*:* | 10.0.0 rc4 | Vulnerable | Mattermost |
- cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* Versions 9.11.0 to before 9.11.3 Vulnerable ·Mattermost
- cpe:2.3:a:mattermost:mattermost_server:10.0.0:-:*:*:*:*:*:* Versions 10.0.0 Vulnerable ·Mattermost
- cpe:2.3:a:mattermost:mattermost_server:10.0.0:rc1:*:*:*:*:*:* Versions 10.0.0 rc1 Vulnerable ·Mattermost
- cpe:2.3:a:mattermost:mattermost_server:10.0.0:rc2:*:*:*:*:*:* Versions 10.0.0 rc2 Vulnerable ·Mattermost
- cpe:2.3:a:mattermost:mattermost_server:10.0.0:rc3:*:*:*:*:*:* Versions 10.0.0 rc3 Vulnerable ·Mattermost
- cpe:2.3:a:mattermost:mattermost_server:10.0.0:rc4:*:*:*:*:*:* Versions 10.0.0 rc4 Vulnerable ·Mattermost
Remediation
- Fix · CNA Mattermost (Mattermost) Fixed in 10.1.0, 10.0.1, 9.11.3
Timeline
- 2026-10-02 Threatist record created from CVE-2024-52032
- 2026-10-03 Alias added: GHSA-69ww-qqv6-w3gj
References
Advisory 1
More Mattermost Server vulnerabilities
- TI-2025-18933 Arbitrary file read in Mattermost Boards via import & export board archive CVSS 3.1CRITICAL 9.9
- TI-2025-04465 Path Traversal Leading to RCE by Any Authenticated Mattermost User CVSS 3.1CRITICAL 9.9
- TI-2017-14068 An issue was discovered in Mattermost Server before 3.6.2. CVSS 3.1CRITICAL 9.8
- TI-2017-14060 An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. CVSS 3.1CRITICAL 9.8
- TI-2017-14048 An issue was discovered in Mattermost Server before 4.1.0, 4.0.4, and 3.10.3. CVSS 3.1CRITICAL 9.8
- TI-2025-14360 Arbitrary file read via block duplication in Mattermost Boards CVSS 3.1CRITICAL 9.9
Sources
- CVE-2024-52032 · CVE Program
- CVE-2024-52032 · NVD
- FIRST EPSS
- GHSA-69ww-qqv6-w3gj · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences