Read the docs
TI-2024-31391 Aliases CVE-2024-47003GHSA-59hf-mpf8-pqjh

DoS via non-string message using permalink embed

Priority LOW 30CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-400.

Summary

Mattermost versions 9.11.x <= 9.11.0 and 9.5.x <= 9.5.8 fail to validate that the message of the permalink post is a string, which allows an attacker to send a non-string value as the message of a permalink post and crash the frontend.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00577 47th percentileScored 2026-11-07
Fix Fixed Mattermost (Mattermost): 10.0.0, 9.11.1, 9.5.9github.com/mattermost/mattermost/server/v8 (Go): 8.0.0-20240806094731-69a8b3df0f9f

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

VendorProductAffected versionsFixed inStatusSource
MattermostMattermost9.11.0; 9.5.0 – 9.5.810.0.0, 9.11.1, 9.5.9Patch availableCNA
—github.com/mattermost/mattermost/server/v8 (Go)before 8.0.0-20240806094731-69a8b3df0f9f8.0.0-20240806094731-69a8b3df0f9fPatch availableGHSA-59hf-mpf8-pqjh
  • Mattermost VendorMattermost Affected 9.11.0; 9.5.0 – 9.5.8 Fixed in 10.0.0, 9.11.1, 9.5.9 Patch available CNA
  • github.com/mattermost/mattermost/server/v8 (Go) Vendor— Affected before 8.0.0-20240806094731-69a8b3df0f9f Fixed in 8.0.0-20240806094731-69a8b3df0f9f Patch available GHSA-59hf-mpf8-pqjh

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*9.5.0 to before 9.5.9VulnerableMattermost
cpe:2.3:a:mattermost:mattermost_server:9.11.0:-:*:*:*:*:*:*9.11.0VulnerableMattermost
cpe:2.3:a:mattermost:mattermost_server:9.11.0:rc1:*:*:*:*:*:*9.11.0 rc1VulnerableMattermost
cpe:2.3:a:mattermost:mattermost_server:9.11.0:rc2:*:*:*:*:*:*9.11.0 rc2VulnerableMattermost
cpe:2.3:a:mattermost:mattermost_server:9.11.0:rc3:*:*:*:*:*:*9.11.0 rc3VulnerableMattermost
  • cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* Versions 9.5.0 to before 9.5.9 Vulnerable ·Mattermost
  • cpe:2.3:a:mattermost:mattermost_server:9.11.0:-:*:*:*:*:*:* Versions 9.11.0 Vulnerable ·Mattermost
  • cpe:2.3:a:mattermost:mattermost_server:9.11.0:rc1:*:*:*:*:*:* Versions 9.11.0 rc1 Vulnerable ·Mattermost
  • cpe:2.3:a:mattermost:mattermost_server:9.11.0:rc2:*:*:*:*:*:* Versions 9.11.0 rc2 Vulnerable ·Mattermost
  • cpe:2.3:a:mattermost:mattermost_server:9.11.0:rc3:*:*:*:*:*:* Versions 9.11.0 rc3 Vulnerable ·Mattermost

Remediation

  • Fix · CNA Mattermost (Mattermost) Fixed in 10.0.0, 9.11.1, 9.5.9
  • Fix · GHSA-59hf-mpf8-pqjh github.com/mattermost/mattermost/server/v8 (Go) Fixed in 8.0.0-20240806094731-69a8b3df0f9f Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-47003
  2. 2026-10-03 Alias added: GHSA-59hf-mpf8-pqjh

References

Advisory 2

Other 4

  • 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
See all 505 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences