Upstream information

CVE-2025-20621 at MITRE

Description

Mattermost versions 10.2.x <= 10.2.0, 9.11.x <= 9.11.5, 10.0.x <= 10.0.3, 10.1.x <= 10.1.3 fail to properly handle posts with attachments containing fields that cannot be cast to a String, which allows an attacker to cause the webapp to crash via creating and sending such a post to a channel.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v3 Scores
  CNA (Mattermost)
Base Score 6.5
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
CVSSv3 Version 3.1
No SUSE Bugzilla entries cross referenced.

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
openSUSE Tumbleweed
  • govulncheck-vulndb >= 0.0.20250117T214834-1.1
 Patchnames:
openSUSE-Tumbleweed-2025-14704

SUSE Timeline for this CVE

CVE page created: Thu Jan 16 22:01:07 2025
CVE page last modified: Thu Jun 19 17:20:16 2025