Is CVE-2026-22892 actively exploited?

No active exploitation of CVE-2026-22892 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-22892 be exploited remotely?

Yes. CVE-2026-22892 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-22892?

CVE-2026-22892 has a CVSS score of 4.3 (MEDIUM) and an EPSS exploitation probability of 0.01%.

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MEDIUM

CVE-2026-22892

CWE-863Published: February 13, 2026· Updated: Feb 18, 2026

4.3

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:0.7th

Official Description

Mattermost 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 Mattermost posts, which allows an authenticated attacker with access to the Jira plugin to read post content and attachments from channels they do not have access to via the /create-issue API endpoint by providing the post ID of an inaccessible post.. Mattermost Advisory ID: MMSA-2025-00550

NVD Source

Technical Analysis

CVE-2026-22892 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.