Lucene search
+L

CVE-2026-4915

🗓️ 26 May 2026 20:14:32Reported by redhat.comType 
redhatcve
 redhatcve
🔗 access.redhat.com👁 23 Views

Mattermost fails to filter nil attachments, enabling authenticated users to trigger denial.

Related
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-4915
25 May 202607:10
–attackerkb
bdu_fstec
BDU FSTEC
Mattermost DoS
1 Jun 202600:00
–bdu_fstec
cnnvd
CNNVD
Mattermost security vulnerabilities
25 May 202600:00
–cnnvd
cve
CVE
CVE-2026-4915
25 May 202607:10
–cve
cvelist
Cvelist
CVE-2026-4915 Server panic via outgoing webhook responses
25 May 202607:10
–cvelist
euvd
EUVD
EUVD-2026-31646
25 May 202607:10
–euvd
github
Github Security Blog
Mattermost doesn't filter nil elements from outgoing webhook attachment payloads before processing
26 May 202613:30
–github
mend
Mend
CVE-2026-4915
25 May 202607:10
–mend
nvd
NVD
CVE-2026-4915
25 May 202608:16
–nvd
osv_cve
osv_cve
CVE-2026-4915 Server panic via outgoing webhook responses
25 May 202607:10
–osv_cve
Rows per page

Data

Build on a solid foundation with Vulners data

We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data

Api

Power your application with Vulners API

The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access

App

Assess and manage vulnerabilities with Vulners tools

Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation

26 May 2026 20:14Current
7.1High risk
Vulners AI Score7.1
CVSS 3.16.5
EPSS0.00277
SSVC
23