An issue was discovered in management/commands/hyperkitty_import.py in HyperKitty through…
Priority LOW 37CWE-276Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-200.
Summary
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.
Why it matters now
EPSS 0.01846 79th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed HyperKitty (PyPI): 1.3.5
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | HyperKitty (PyPI) | before 1.3.5 | 1.3.5 | Patch available | GHSA-h39g-q63v-4h9p |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- HyperKitty (PyPI) Vendor— Affected before 1.3.5 Fixed in 1.3.5 Patch available GHSA-h39g-q63v-4h9p
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:hyperkitty_project:hyperkitty:*:*:*:*:*:*:*:* | up to 1.3.4 | Vulnerable | Hyperkitty Project |
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 10.0 | Vulnerable | Debian |
- cpe:2.3:a:hyperkitty_project:hyperkitty:*:*:*:*:*:*:*:* Versions up to 1.3.4 Vulnerable ·Hyperkitty Project
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
Remediation
- Fix · GHSA-h39g-q63v-4h9p HyperKitty (PyPI) Fixed in 1.3.5 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2021-33038
- 2026-10-03 Alias added: GHSA-h39g-q63v-4h9p
References
Patch 2
Advisory 3
Sources
- CVE-2021-33038 · CVE Program
- CVE-2021-33038 · NVD
- FIRST EPSS
- GHSA-h39g-q63v-4h9p · GitHub Advisory Database · CC BY 4.0
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