CVE-2026-116516
Insufficient length validation when parsing Zoom chat transcriptions
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
Mattermost versions <=11.9 11.1.9 11.5.8 11.10.7.0 fail to validate Zoom chat line length before slicing which allows an authenticated attacker to crash the Agents plugin via summarizing a Zoom chat transcription containing short continuation lines. Mattermost Advisory ID: MMSA-2026-00723
| CWE | CWE-754 |
| Vendor | mattermost |
| Product | mattermost |
| Published | Oct 26, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
Mattermost / Mattermost
<=11.9 11.1.9 11.5.8 11.10.7.0 ≤ <=11.9 11.1.9 11.5.8 11.10.7.0
Credits
alimursaliyev