UpHeron
All vulnerabilities

Servers and applications

CVE-2023-5196

Mattermost fails to enforce character limits in all possible notification props allowing an attacker to send a really long value for a notification_prop resulting in the server consuming an abnormal quantity of computing resources and possibly becoming temporarily unavailable for its users.

Severity
Medium 6.5
Published
29 Sept 2023
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
7.8.10, 8.0.2, 8.1.1
Sources
NVD

Affected software

SoftwareAffected versions
MattermostServers and applications · cpe:a:mattermost:mattermost
  • From 7.0.0 before 7.8.10
  • From 8.0.0 before 8.0.2
  • From 8.1.0 before 8.1.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2023-5196
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2023-5196