PT-2025-34195 · Mattermost · Mattermost

Juho Forsén · Published 2025-08-21 · Updated 2025-08-29 · CVE-2025-49810

Positive Technologies (AI Summary)

CVSS v3.1

3.5

Low

Base vector

AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N

Name of the Vulnerable Software and Affected Versions: Mattermost versions 10.5.0 through 10.5.8

Description: Mattermost versions 10.5.x through 10.5.8 do not validate access controls when accessing data, potentially allowing a user to read a thread through AI posts.

Recommendations: Update to a version later than 10.5.8.

Fix

Incorrect Authorization

Weakness Enumeration

CWE-863

Related Identifiers

CVE-2025-49810

GHSA-PWVR-GRQG-7VP2

GO-2025-3903

Affected Products

Mattermost

References · 12

• https://osv.dev/vulnerability/CVE-2025-49810 · Vendor Advisory
• https://osv.dev/vulnerability/GO-2025-3903 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-pwvr-grqg-7vp2 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-49810 · Security Note
• https://github.com/mattermost/mattermost · Note
• https://mattermost.com/security-updates · Note
• https://pkg.go.dev/vuln/GO-2025-3903 · Note
• https://twitter.com/VulmonFeeds/status/1958473607564099783 · Twitter Post
• https://twitter.com/CVEnew/status/1958432106259845345 · Twitter Post
• https://t.me/CVEtracker/30570 · Telegram Post
• https://github.com/advisories/GHSA-pwvr-grqg-7vp2 · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-49810 · Note