Vulnerability DatabaseCVE-2025-49810
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CVE-2025-49810
August 21, 2025
Mattermost versions 10.5.x <= 10.5.8 fail to validate access controls at time of access which allows user to read a thread via AI posts
Affected Packages
github.com/mattermost/mattermost (GO):
Affected version(s) >=v10.5.0 <v10.5.9
Fix Suggestion:
Update to version v10.5.9
github.com/mattermost/mattermost-server (GO):
Affected version(s) >=v10.5.0 <v10.5.9
Fix Suggestion:
Update to version v10.5.9
github.com/mattermost/mattermost/server/v8 (GO):
Affected version(s) >=v8.0.0-20230429093631-aac4f2337933 <v8.0.0-20250721095846-c602a4a78e1f
Fix Suggestion:
Update to version v8.0.0-20250721095846-c602a4a78e1f
Related Resources (5)
https://nvd.nist.gov/vuln/detail/CVE-2025-49810
https://github.com/advisories/GHSA-pwvr-grqg-7vp2
https://mattermost.com/security-updates
https://pkg.go.dev/vuln/GO-2025-3903
https://github.com/mattermost/mattermost
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CVSS v4
Base Score:
5.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
PASSIVE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
3.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Incorrect Authorization
CWE-863
EPSS
Base Score:
0.03