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.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | hyperkitty | 1.3.4-4 | — |
| Debian 13 | hyperkitty | 1.3.4-4 | — |
| Debian 12 | hyperkitty | 1.3.4-4 | — |
| Debian 10 | hyperkitty | 1.2.2-1+deb10u1 | DSA-4922-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | hyperkitty | No fix yet | — |
| Ubuntu 26.04 LTS | hyperkitty | No fix yet | — |
| Ubuntu 25.10 | hyperkitty | No fix yet | — |
| Ubuntu 24.04 LTS | hyperkitty | No fix yet | — |
| Ubuntu 22.04 LTS | hyperkitty | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | hyperkitty | No fix yet | — |
| Ubuntu 18.04 LTS | hyperkitty | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.2 | python-HyperKitty | 1.3.2-lp152.2.3.1 | openSUSE-SU-2021:0861-1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | hyperkitty | < 1.3.5 | 1.3.5 | GHSA-h39g-q63v-4h9p |
Advisories 2
- DSA-4922-1 hyperkitty - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2021:0861-1 Security update for python-HyperKitty SUSE / openSUSE Security Updates · Feb 4, 2026