CVE-2025-20072

Mobile crash via improper validation of proto style in attachments

CVSS 6.5 MEDIUMEPSS 0.5%CWE-704

Mattermost Mobile versions <= 2.22.0 fail to properly validate the style of proto supplied to an action's style in post.props.attachments, which allows an attacker to crash the mobile via crafted malicious input.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

Mattermost · Mattermost

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References

https://mattermost.com/security-updates