UpHeron
All vulnerabilities

Servers and applications

CVE-2023-28356

A vulnerability has been identified where a maliciously crafted message containing a specific chain of characters can cause the chat to enter a hot loop on one of the processes, consuming ~120% CPU and rendering the service unresponsive.

Severity
High 7.5
Published
11 May 2023
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
6.0.0
Sources
NVD

Affected software

SoftwareAffected versions
Rocket.ChatServers and applications · cpe:a:rocket.chat:rocket.chat
  • Every version before 6.0.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2023-28356
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2023-28356