VULNERABILITY INTELLIGENCE

CVE-2021-33038

CVSS score7.5 HIGH

EPSS probability1.85%

CISA KEVNot currently listed

Published2021-05-26

Last modified2026-06-17

Description

An issue was discovered in management/commands/hyperkitty_import.py in HyperKitty through 1.3.4. When importing a private mailing list's archives, these archives are publicly visible for the duration of the import. For example, sensitive information might be available on the web for an hour during a large migration from Mailman 2 to Mailman 3.