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.
Metrics
CVSS 3.1 7.5/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- https://gitlab.com/mailman/hyperkitty/-/commit/9025324597d60b2dff740e49b70b15589d6804faPatch, Third Party Advisory
- https://gitlab.com/mailman/hyperkitty/-/issues/380Exploit, Issue Tracking, Patch, Third Party Advisory
- https://techblog.wikimedia.org/2021/06/11/discovering-and-fixing-cve-2021-33038-in-mailman3/Patch, Third Party Advisory
- https://www.debian.org/security/2021/dsa-4922Third Party Advisory
- https://gitlab.com/mailman/hyperkitty/-/commit/9025324597d60b2dff740e49b70b15589d6804faPatch, Third Party Advisory
- https://gitlab.com/mailman/hyperkitty/-/issues/380Exploit, Issue Tracking, Patch, Third Party Advisory
- https://techblog.wikimedia.org/2021/06/11/discovering-and-fixing-cve-2021-33038-in-mailman3/Patch, Third Party Advisory
- https://www.debian.org/security/2021/dsa-4922Third Party Advisory
Timeline
- Published
- May 26, 2021
- Last modified
- Jun 17, 2026
- NVD status
- Modified