Mattermost fails to properly limit the characters allowed in different fields of a block in Mattermost Boards allowing a attacker to consume excessive resources, possibly leading to Denial of Service, by patching the field of a block using a specially crafted string. 
References
History

Tue, 03 Jun 2025 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: Mattermost

Published: 2023-11-27T09:08:31.251Z

Updated: 2025-06-03T14:01:59.793Z

Reserved: 2023-11-22T11:18:57.610Z

Link: CVE-2023-40703

cve-icon Vulnrichment

Updated: 2024-08-02T18:38:51.081Z

cve-icon NVD

Status : Modified

Published: 2023-11-27T10:15:07.460

Modified: 2024-11-21T08:19:59.620

Link: CVE-2023-40703

cve-icon Redhat

No data.