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TI-2024-10746 Aliases CVE-2024-11599GHSA-9g34-2mp9-r344

Domain Restriction Bypass on Registration

Priority MEDIUM 42CWE-754Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

Mattermost versions 10.0.x <= 10.0.1, 10.1.x <= 10.1.1, 9.11.x <= 9.11.3, 9.5.x <= 9.5.11 fail to properly validate email addresses which allows an unauthenticated user to bypass email domain restrictions via carefully crafted input on email registration.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00468 40th percentileScored 2026-11-07
Fix Fixed Mattermost (Mattermost): 10.2.0, 10.0.2, 10.1.2 +2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
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
MattermostMattermost10.0.0 – 10.0.1; 10.1.0 – 10.1.1; 9.11.0 – 9.11.3; 9.5.0 – 9.5.1110.2.0, 10.0.2, 10.1.2, 9.11.4, 9.5.12Patch availableCNA
  • Mattermost VendorMattermost Affected 10.0.0 – 10.0.1; 10.1.0 – 10.1.1; 9.11.0 – 9.11.3; 9.5.0 – 9.5.11 Fixed in 10.2.0, 10.0.2, 10.1.2, 9.11.4, 9.5.12 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*9.5.0 to before 9.5.12; 9.11.0 to before 9.11.4; 10.0.0 to before 10.0.2; 10.1.0 to before 10.1.2VulnerableMattermost
  • cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* Versions 9.5.0 to before 9.5.12; 9.11.0 to before 9.11.4; 10.0.0 to before 10.0.2; 10.1.0 to before 10.1.2 Vulnerable ·Mattermost

Remediation

  • Fix · CNA Mattermost (Mattermost) Fixed in 10.2.0, 10.0.2, 10.1.2, 9.11.4, 9.5.12

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-11599
  2. 2026-10-03 Alias added: GHSA-9g34-2mp9-r344

References

Advisory 1

  • 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