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CVE-2026-2454

🗓️ 16 Mar 2026 21:16:33Reported by [email protected]Type 
nvd
 nvd
🔗 web.nvd.nist.gov👁 24 Views

Mattermost fails to handle incorrect array lengths, causing OOMs from corrupted msgpack frames in websocket calls.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
bdu_fstec
BDU FSTEC
Mattermost DoS
13 May 202600:00
–bdu_fstec
cnnvd
CNNVD
Mattermost security vulnerabilities
16 Mar 202600:00
–cnnvd
cve
CVE
CVE-2026-2454
16 Mar 202620:10
–cve
cvelist
Cvelist
CVE-2026-2454 DoS in Calls plugin via malformed msgpack in websocket request.
16 Mar 202620:10
–cvelist
euvd
EUVD
EUVD-2026-12510
16 Mar 202621:34
–euvd
mend
Mend
CVE-2026-2454
16 Mar 202620:10
–mend
osv_cga
osv_cga
CGA-2Q22-XHG5-V238
13 Oct 202613:15
–osv_cga
osv_cga
osv_cga
CGA-33RJ-WXJQ-J946
13 Oct 202613:15
–osv_cga
osv_cga
osv_cga
CGA-35QG-W3H5-8VF3
13 Oct 202613:15
–osv_cga
osv_cga
osv_cga
CGA-8HW8-F6V8-84RX
13 Oct 202613:15
–osv_cga
Rows per page
NVD
Node
OR
mattermostmattermost_serverRange10.11.0–10.11.11
mattermostmattermost_serverRange11.2.0–11.2.3
mattermostmattermost_serverRange11.3.0–11.3.1

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17 Jun 2026 10:30Current
CVSS 3.15.8 - 8.6
EPSS0.00285
SSVC
24