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CVE-2026-24661

Unbounded Request Body Read in MS Teams Plugin {{/changes}} Webhook Endpoint PUBLISHED

Description (CNA)

Mattermost Plugins versions <=2.1.3.0 fail to limit the request body size on the {{/changes}} webhook endpoint which allows an authenticated attacker to cause memory exhaustion and denial of service via sending an oversized JSON payload. Mattermost Advisory ID: MMSA-2026-00611

Affected (CNA)

Vendor / productVersions
Mattermost / Mattermostaffected 0 through 2.1.3; unaffected 2.3.2.0

CWE

CWE-770

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.