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CVE-2026-5308

🗓️ 22 May 2026 10:20:43Reported by MendType 
mend
 mend
🔗 www.mend.io👁 11 Views

Mattermost fails to enforce request body size limits on plugin HTTP endpoints, causing DoS.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-5308
22 May 202610:20
–attackerkb
bdu_fstec
BDU FSTEC
Mattermost Uncontrolled Resource Consumption DoS
1 Jun 202600:00
–bdu_fstec
circl
Circl
CVE-2026-5308
22 May 202612:43
–circl
cnnvd
CNNVD
Mattermost security vulnerabilities
22 May 202600:00
–cnnvd
cve
CVE
CVE-2026-5308
22 May 202610:20
–cve
cvelist
Cvelist
CVE-2026-5308 Missing request body size limits on Zoom plugin HTTP endpoints
22 May 202610:20
–cvelist
euvd
EUVD
EUVD-2026-31425
22 May 202610:20
–euvd
github
Github Security Blog
Mattermost doesn't enforce request body size limits on plugin HTTP endpoints
26 May 202613:30
–github
nvd
NVD
CVE-2026-5308
22 May 202611:16
–nvd
osv_cve
osv_cve
CVE-2026-5308 Missing request body size limits on Zoom plugin HTTP endpoints
22 May 202610:20
–osv_cve
Rows per page
Vulners
Node
OR
mattermostmattermostRange11.4.0–11.4.5
mattermostmattermost_serverRange10.11.0–10.11.15
mattermostmattermostRange11.6.0–11.6.1
mattermostmattermost_serverRange11.4.0–11.4.5
mattermostmattermost_serverRange11.6.0–11.6.1
mattermostmattermostRange10.11.0–10.11.15
mattermostmattermost_serverRange11.5.0–11.5.4
mattermostmattermostRange11.5.0–11.5.4

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07 Oct 2026 22:48Current
7.4High risk
Vulners AI Score7.4
CVSS 3.14.9 - 7.5
CVSS 46.9
EPSS0.00254
SSVC
11