CVE-2026-22880

MediumCVSS 6.1/10Last modified Aug 6, 2026

Description

Mattermost Mobile Apps versions <=2.37 11.4 2.0.37 11.0.4 11.1.3 11.3.2 10.11.11.0 fail to properly validate the SSO authentication callback origin which allows an attacker controlling a malicious Mattermost server to steal user credentials for a legitimate Mattermost server via relaying the SSO code exchange flow through the mobile application. Mattermost Advisory ID: MMSA-2025-00564

Metrics

CVSS 3.1 6.1/10CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:N/A:N

Weakness enumeration

CWE-352

Affected software

No affected versions have been published.

Timeline

Published: May 21, 2026
Last modified: Aug 6, 2026
NVD status: Analyzed

Related CVEs from 2026

CVE-2026-228815.4Cross-site scripting vulnerability exists in Message function of Cybozu Garoon 5.15.0 to 6.0.3, which may allow an attacker to reset arbitra CVE-2026-228827.1An out-of-bounds read vulnerability exists in the EMF functionality of Canva Affinity. By using a specially crafted EMF file, an attacker co CVE-2026-228853.7A vulnerability exists in EnOcean SmartServer IoT version 4.60.009 and prior, which would allow remote attackers, in the LON IP-852 managem CVE-2026-228869.8OpenMQ exposes a TCP-based management service (imqbrokerd) that by default requires authentication. However, the product ships with a defaul CVE-2026-228877.4Improper buffer restrictions for some Intel(R) PROSet/Wireless WiFi Software for Windows within Ring 0: Kernel may allow a denial of service CVE-2026-228887.5Improper input verification issue exists in Cybozu Garoon 5.0.0 to 6.0.3, which may lead to unauthorized alteration of portal settings, pote CVE-2026-22894.4The Taskbuilder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 5 CVE-2026-228905.3Charging station authentication identifiers are publicly accessible via web-based mapping platforms.CVE-2026-228919.8A heap-based buffer overflow vulnerability exists in the Intan CLP parsing functionality of The Biosig Project libbiosig 3.9.2 and Master Br CVE-2026-228924.3Mattermost versions 11.1.x <= 11.1.2, 10.11.x <= 10.11.9, 11.2.x <= 11.2.1 fail to validate user permissions when creating Jira issues from CVE-2026-228937.2A command injection vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administ CVE-2026-228946.5A path traversal vulnerability has been reported to affect File Station 6. If a remote attacker gains a user account, they can then exploit