NixOS 17.03 and earlier has an unintended default absence of SSL Certificate Validation…
Priority LOW 28CWE-295Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-295.
Summary
NixOS 17.03 and earlier has an unintended default absence of SSL Certificate Validation for LDAP. The users.ldap NixOS module implements user authentication against LDAP servers via a PAM module. It was found that if TLS is enabled to connect to the LDAP server with users.ldap.useTLS, peer verification will be unconditionally disabled in /etc/ldap.conf.
Why it matters now
EPSS 0.00875 59th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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 · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:nixos_project:nixos:*:*:*:*:*:*:*:* | up to 17.03 | Vulnerable | Nixos Project |
- cpe:2.3:o:nixos_project:nixos:*:*:*:*:*:*:*:* Versions up to 17.03 Vulnerable ·Nixos Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-11501
- 2026-10-03 Alias added: GHSA-9ggv-74q3-4mc4
References
Sources
- CVE-2017-11501 · CVE Program
- CVE-2017-11501 · NVD
- FIRST EPSS
- GHSA-9ggv-74q3-4mc4 · GitHub Advisory Database · CC BY 4.0
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