Resolved after 3 hours 11 minutes, affecting Nutshell application and Nutshell Marketing outgoing email, on October 21, 2026.
We are continuing to monitor for any further issues.
Affected components
Update timeline
- monitoring Oct 21, 2026, 02:14 PM UTC
Nutshell is aware of the PHP2Shell security vulnerability and we have taken steps to secure any affected servers. A few services were unable to be properly secured without risk of attack, and have been temporarily disabled. We expect these services to be re-enabled later this morning when a patch has been applied. The following services are affected: - Landing pages hosted on custom domains - Email link tracking using custom domains - Scheduler pages hosted on custom domains
- monitoring Oct 21, 2026, 02:14 PM UTC
We are continuing to monitor for any further issues.
- resolved Oct 21, 2026, 05:25 PM UTC
This incident has been resolved.
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