GNU Mailman before 2.1.33 allows arbitrary content injection via the Cgi/private.py private archive login page.
Priority LOW 24CWE-74Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Partial Red Hat: 1 fixed, 3 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.
Summary
GNU Mailman before 2.1.33 allows arbitrary content injection via the Cgi/private.py private archive login page.
Why it matters now
EPSS 0.01888 79th percentileScored 2026-11-07
Fix Partial Red Hat: 1 advisoryRed Hat: 1 fixed, 3 without a fix
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 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:gnu:mailman:*:*:*:*:*:*:*:* | before 2.1.33 | Vulnerable | GNU |
| cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* | 16.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* | 18.04 | Vulnerable | Canonical |
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 10.0 | Vulnerable | Debian |
- cpe:2.3:a:gnu:mailman:*:*:*:*:*:*:*:* Versions before 2.1.33 Vulnerable ·GNU
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* Versions 16.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* Versions 18.04 Vulnerable ·Canonical
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
Remediation
Red Hat 1 advisory
- RHSA-2021:1751 Released 2021-05-18 · Red Hat rating Moderatemailman:2.1 security update
- Red Hat Enterprise Linux AppStream (v. 8) mailman-3:2.1.29-11.module+el8.4.0+8277+5e2c6e6e.aarch64::mailman:2.1, mailman-3:2.1.29-11.module+el8.4.0+8277+5e2c6e6e.ppc64le::mailman:2.1, mailman-3:2.1.29-11.module+el8.4.0+8277+5e2c6e6e.s390x::mailman:2.1 +2
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2021:1751 |
Timeline
- 2026-10-02 Threatist record created from CVE-2020-15011
- 2026-10-03 Alias added: GHSA-fvg8-xwx7-9x5m
References
Sources
- CVE-2020-15011 · CVE Program
- CVE-2020-15011 · NVD
- FIRST EPSS
- GHSA-fvg8-xwx7-9x5m · GitHub Advisory Database · CC BY 4.0
- CVE-2020-15011 · Red Hat security data · CC BY 4.0
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