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TI-2019-15090 Aliases CVE-2019-20872GHSA-ff4w-g37q-gw56

An issue was discovered in Mattermost Server before 5.9.0, 5.8.1, 5.7.3, and 4.10.8.

Priority LOW 25CWE-918Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-918 and the CVSS impact.

Summary

An issue was discovered in Mattermost Server before 5.9.0, 5.8.1, 5.7.3, and 4.10.8. SSRF can attack local services.

Why it matters now

EPSS 0.00306 23rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

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
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*before 4.10.8; 5.7.0 to before 5.7.3; 5.8.0 to before 5.8.1VulnerableMattermost
cpe:2.3:a:mattermost:mattermost_server:5.9.0:rc1:*:*:*:*:*:*5.9.0 rc1VulnerableMattermost
cpe:2.3:a:mattermost:mattermost_server:5.9.0:rc2:*:*:*:*:*:*5.9.0 rc2VulnerableMattermost
cpe:2.3:a:mattermost:mattermost_server:5.9.0:rc3:*:*:*:*:*:*5.9.0 rc3VulnerableMattermost
cpe:2.3:a:mattermost:mattermost_server:5.9.0:rc4:*:*:*:*:*:*5.9.0 rc4VulnerableMattermost
  • cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* Versions before 4.10.8; 5.7.0 to before 5.7.3; 5.8.0 to before 5.8.1 Vulnerable ·Mattermost
  • cpe:2.3:a:mattermost:mattermost_server:5.9.0:rc1:*:*:*:*:*:* Versions 5.9.0 rc1 Vulnerable ·Mattermost
  • cpe:2.3:a:mattermost:mattermost_server:5.9.0:rc2:*:*:*:*:*:* Versions 5.9.0 rc2 Vulnerable ·Mattermost
  • cpe:2.3:a:mattermost:mattermost_server:5.9.0:rc3:*:*:*:*:*:* Versions 5.9.0 rc3 Vulnerable ·Mattermost
  • cpe:2.3:a:mattermost:mattermost_server:5.9.0:rc4:*:*:*:*:*:* Versions 5.9.0 rc4 Vulnerable ·Mattermost

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-20872
  2. 2026-10-03 Alias added: GHSA-ff4w-g37q-gw56

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