UpHeron
All vulnerabilities

Servers and applications

CVE-2022-3257

Mattermost version 7.1.x and earlier fails to sufficiently process a specifically crafted GIF file when it is uploaded while drafting a post, which allows authenticated users to cause resource exhaustion while processing the file, resulting in server-side Denial of Service.

Severity
Medium 6.5
Published
23 Sept 2022
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
7.2.0
Sources
NVD

Affected software

SoftwareAffected versions
MattermostServers and applications · cpe:a:mattermost:mattermost_server
  • Every version before 7.2.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2022-3257
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2022-3257