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CVE-2025-49810

Good to know:

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Date: 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

Severity Score

Related Resources (6)

https://github.com/advisories/GHSA-pwvr-grqg-7vp2
https://nvd.nist.gov/vuln/detail/CVE-2025-49810
https://github.com/mattermost/mattermost
https://mattermost.com/security-updates
https://pkg.go.dev/vuln/GO-2025-3903
https://www.mend.io/vulnerability-database/CVE-2025-49810

Severity Score

Weakness Type (CWE)

Incorrect Authorization

CWE-863

Top Fix

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Upgrade Version

Upgrade to version github.com/mattermost/mattermost - v10.5.9;github.com/mattermost/mattermost-server - v10.5.9;github.com/mattermost/mattermost-server - v10.5.9+incompatible;github.com/mattermost/mattermost/server/v8 - v8.0.0-20250721095846-c602a4a78e1f

Learn More

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): NONE
Availability (A): NONE

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