CVE-2026-86348
🔶 mediumSummary
Mattermost versions <=11.9 11.0.9 11.4.8 11.7.7 10.22.11.0 fail to recover from handler panics, which allows an authenticated user to crash the plugin via a post-action request with an unexpected field type.. Mattermost Advisory ID: MMSA-2026-00701
CVSS Score
4.3
Medium
EPSS Score
0.2
Exploit Probability
Published Date
2026-09-14
First Seen: 2026-09-16
📊 Relative Risk Intelligence
This CVE is Lower Risk - more severe than 5.3% of all 357,695 vulnerabilities in our database.
#338,588
Below average severity
Severity Percentile
🎯 CISA SSVC Assessment Updated: Sep 14, 2026
🔍 Exploitation Status
None
No known exploits
⚙️ Automatable
NO
Requires human interaction
💥 Technical Impact
Partial
Limited system impact
🏆 Discovered By
alimursaliyev
SSVC data provided by
CISA
Last Modified
2026-09-14
Source
NVD 🔗
CVSS Vector 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CWE IDs (Weakness Types)