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CVE-2025-13326— Mattermost Desktop App fails to enable Hardened Runtime when packaged for Mac App Store

Quick assessment

Affected
Mattermost Mattermost
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Mattermost Desktop App是美国Mattermost公司的一款消息传递桌面版应用程序。 Mattermost Desktop App 6.0.0之前版本存在安全漏洞，该漏洞源于为Mac App Store打包时未启用强化运行时，可能导致通过将二进制文件复制到tmp文件夹来继承TCC权限。

CVSS 3.9 · Low EPSS 0.11% · P1

Possible ATT&CK Techniques 1 AI

T1212 · Exploitation for Credential Access
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I. Basic Information for CVE-2025-13326

Vulnerability Information
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Vulnerability Title
Mattermost Desktop App fails to enable Hardened Runtime when packaged for Mac App Store
Source: CVE Program / CVE List V5
Vulnerability Description
Mattermost Desktop App versions <6.0.0 fail to enable the Hardened Runtime on the Mattermost Desktop App when packaged for Mac App Store which allows an attacker to inherit TCC permissions via copying the binary to a tmp folder.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
保护机制失效
Source: CVE Program / CVE List V5
Vulnerability Title
Mattermost Desktop App 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mattermost Desktop App是美国Mattermost公司的一款消息传递桌面版应用程序。 Mattermost Desktop App 6.0.0之前版本存在安全漏洞，该漏洞源于为Mac App Store打包时未启用强化运行时，可能导致通过将二进制文件复制到tmp文件夹来继承TCC权限。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Mattermost Mattermost 0 ~ 6.0.0 -

II. Public POCs for CVE-2025-13326

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III. Intelligence Information for CVE-2025-13326

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Same Patch Batch · Mattermost · 2025-12-17 · 7 CVEs total

CVE-2025-12689 6.5 MEDIUM DoS in Calls plugin via malformed UTF-8 in WebSocket request
CVE-2025-62190 4.3 MEDIUM CSRF Allows Call Initiation and Message Delivery
CVE-2025-13324 3.7 LOW Lack of Invalidation of Legacy Remote Cluster Invite Tokens After Confirmation
CVE-2025-13321 3.3 LOW Mattermost Desktop App logging sensitive information and fails to clear data on server del
CVE-2025-62690 3.1 LOW Open redirect in error page when link opened in new tab
CVE-2025-13352 3.0 LOW Mattermost GitHub Plugin allows unauthorized GitHub reactions via reaction forwarding hija

IV. Related Vulnerabilities

Same product: Mattermost
Same vendor: Mattermost
Same weakness: CWE-693

V. Comments for CVE-2025-13326

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