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CVE-2026-4646

🗓️ 22 May 2026 11:16:22Reported by [email protected]Type 
nvd
 nvd
🔗 web.nvd.nist.gov👁 31 Views

Mattermost API input validation allows crafted PR details requests to crash the plugin process.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-4646
22 May 202610:25
–attackerkb
bdu_fstec
BDU FSTEC
Mattermost API Request Handler DoS
1 Jun 202600:00
–bdu_fstec
circl
Circl
CVE-2026-4646
22 May 202613:05
–circl
cnnvd
CNNVD
Mattermost security vulnerabilities
22 May 202600:00
–cnnvd
cve
CVE
CVE-2026-4646
22 May 202610:25
–cve
cvelist
Cvelist
CVE-2026-4646 Insufficient input validation in GitHub plugin API causes denial of service
22 May 202610:25
–cvelist
euvd
EUVD
EUVD-2026-31430
22 May 202610:25
–euvd
github
Github Security Blog
Mattermost doesn't validate user-supplied input in API request handlers
26 May 202613:30
–github
mend
Mend
CVE-2026-4646
22 May 202610:25
–mend
osv_ghsa
osv_ghsa
GHSA-RMVV-8V8W-RF7X Mattermost doesn't validate user-supplied input in API request handlers
26 May 202613:30
–osv_ghsa
Rows per page
NVD
Node
OR
mattermostmattermost_serverRange10.11.0–10.11.15
mattermostmattermost_serverRange11.4.0–11.4.5
mattermostmattermost_serverRange11.5.0–11.5.4
mattermostmattermost_serverRange11.6.0–11.6.1

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