VulnSocial

CVE-2026-0997Disclosure(mattermost / mattermost_server)

LOWCVSS 4.3 · MEDIUM

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Mattermost versions 11.1.x <= 11.1.2, 10.11.x <= 10.11.9, 11.2.x <= 11.2.1 and Mattermost Plugin Zoom versions <=1.11.0 fail to validate the authenticated user when processing {{/plugins/zoom/api/v1/channel-preference}}, which allows any logged-in user to change Zoom meeting restrictions for arbitrary channels via crafted API requests.. Mattermost Advisory ID: MMSA-2025-00558

mattermost CVEsBack to dashboard
0.0/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-863

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • mattermost_server
  • zoom

Threat summary

  • 2 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 2 classified signals
  • 2 total mentions across 1 day

Affected systems

Vendors
mattermost
Products
mattermost_serverzoom

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-02-16: 2Technical Details · 2026-02-16: 102-16
Signal classification1 categories
Disclosure
2100.0%
Referenced assets2 URLs
Full discourse2 posts
  • CVE@CVEnew
    Disclosure

    CVE-2026-0997 Mattermost versions 11.1.x &lt;= 11.1.2, 10.11.x &lt;= 10.11.9, 11.2.x &lt;= 11.2.1 and Mattermost Plugin Zoom versions &lt;=1.11.0 fail to validate the authenticated user when pro… https://www.cve.org/CVERecord?id=CVE-2026-0997

    Post summary

    The advisory notes that specific Mattermost and Mattermost Plugin Zoom versions fail to validate authenticated users, indicating a potential security vulnerability. No PoC, exploit code, or patch is mentioned.

    00010190
    56.4K followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-0997 Mattermost Zoom Plugin Unauthorized Channel Preference Modification Vulnerability https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-0997

    Post summary

    The text discloses a new vulnerability (CVE‑2026‑0997) affecting the Mattermost Zoom Plugin, but provides no evidence of exploitation, PoC, or mitigation information.

    0001057
    4.0K followersView on X
CPE platform detail2 entries

2 of 2 entries

PartVendorProductVersionTarget SWTarget HW
Appmattermostmattermost_server---
Appmattermostzoom-mattermost-

Explore more

Back to dashboardmattermost CVEsmattermost_server vulnerabilities