UpHeron
All vulnerabilities

Servers and applications

CVE-2023-5330

Mattermost fails to enforce a limit for the size of the cache entry for OpenGraph data allowing an attacker to send a specially crafted request to the /api/v4/opengraph filling the cache and turning the server unavailable.

Severity
High 7.5
Published
9 Oct 2023
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
7.8.11, 8.0.3, 8.1.2
Sources
NVD

Affected software

SoftwareAffected versions
MattermostServers and applications · cpe:a:mattermost:mattermost_server
  • Every version before 7.8.11
  • From 8.0.0 before 8.0.3
  • From 8.1.0 before 8.1.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2023-5330
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2023-5330