CVE-2026-5308
Analyzed Analyzed - Analysis Complete
BaseFortify

Publication date: 2026-05-22

Last updated on: 2026-05-22

Assigner: Mattermost, Inc.

Description
Mattermost versions 11.6.x <= 11.6.0, 11.5.x <= 11.5.3, 11.4.x <= 11.4.4, 10.11.x <= 10.11.14 fail to enforce request body size limits on plugin HTTP endpoints which allows an attacker to cause a denial of service via crafted oversized HTTP requests.. Mattermost Advisory ID: MMSA-2026-00646
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Meta Information
Published
2026-05-22
Last Modified
2026-05-22
Generated
2026-06-15
EPSS Evaluated
2026-06-14
NVD
CVE-2026-5308
EUVD
EUVD-2026-31425
Affected Vendors & Products
Showing 4 associated CPEs
Vendor Product Version / Range
mattermost mattermost_server From 10.11.0 (inc) to 10.11.15 (exc)
mattermost mattermost_server From 11.4.0 (inc) to 11.4.5 (exc)
mattermost mattermost_server From 11.5.0 (inc) to 11.5.4 (exc)
mattermost mattermost_server From 11.6.0 (inc) to 11.6.1 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-400 The product does not properly control the allocation and maintenance of a limited resource.
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