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TI-2017-14063 Aliases CVE-2017-18915GHSA-hxxj-8phw-74vw

An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7.

Priority MEDIUM 44CWE-276Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.

Summary

An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. After a restart of a server, an attacker might suddenly gain API Endpoint access.

Why it matters now

EPSS 0.01184 67th percentileScored 2026-11-07
Fix Fixed github.com/mattermost/mattermost-server (Go): 3.6.7-0.20170420152529-0968e4079e0a, 3.7.5, 3.8.2

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—github.com/mattermost/mattermost-server (Go)before 3.6.7-0.20170420152529-0968e4079e0a3.6.7-0.20170420152529-0968e4079e0aPatch availableGHSA-hxxj-8phw-74vw
—github.com/mattermost/mattermost-server (Go)3.7.0 to before 3.7.53.7.5Patch availableGHSA-hxxj-8phw-74vw
—github.com/mattermost/mattermost-server (Go)3.8.0 to before 3.8.23.8.2Patch availableGHSA-hxxj-8phw-74vw
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • github.com/mattermost/mattermost-server (Go) Vendor— Affected before 3.6.7-0.20170420152529-0968e4079e0a Fixed in 3.6.7-0.20170420152529-0968e4079e0a Patch available GHSA-hxxj-8phw-74vw
  • github.com/mattermost/mattermost-server (Go) Vendor— Affected 3.7.0 to before 3.7.5 Fixed in 3.7.5 Patch available GHSA-hxxj-8phw-74vw
  • github.com/mattermost/mattermost-server (Go) Vendor— Affected 3.8.0 to before 3.8.2 Fixed in 3.8.2 Patch available GHSA-hxxj-8phw-74vw

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*3.6.0 to before 3.6.7; 3.7.0 to before 3.7.5; 3.8.0 to before 3.8.2VulnerableMattermost
  • cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* Versions 3.6.0 to before 3.6.7; 3.7.0 to before 3.7.5; 3.8.0 to before 3.8.2 Vulnerable ·Mattermost

Remediation

  • Fix · GHSA-hxxj-8phw-74vw github.com/mattermost/mattermost-server (Go) Fixed in 3.6.7-0.20170420152529-0968e4079e0a Advisory →
  • Fix · GHSA-hxxj-8phw-74vw github.com/mattermost/mattermost-server (Go) Fixed in 3.7.5 Advisory →
  • Fix · GHSA-hxxj-8phw-74vw github.com/mattermost/mattermost-server (Go) Fixed in 3.8.2 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-18915
  2. 2026-10-03 Alias added: GHSA-hxxj-8phw-74vw

References

Advisory 2

Other 5

  • 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