Improper certificate validation in Puppet Chloride
Priority LOW 35CWE-295Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub. Impact type from CWE-295.
Summary
Prior to version 0.3.0, chloride's use of net-ssh resulted in host fingerprints for previously unknown hosts getting added to the user's known_hosts file without confirmation. In version 0.3.0 this is updated so that the user's known_hosts file is not updated by chloride.
Why it matters now
EPSS 0.00893 59th percentileScored 2026-11-07
Fix Fixed Chloride (Puppet): 0.3.0chloride (RubyGems): 0.3.0
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 |
|---|---|---|---|---|---|
| Puppet | Chloride | before 0.3.0 | 0.3.0 | Patch available | CNA |
| — | chloride (RubyGems) | before 0.3.0 | 0.3.0 | Patch available | GHSA-573x-jhqh-jg36 |
- Chloride VendorPuppet Affected before 0.3.0 Fixed in 0.3.0 Patch available CNA
- chloride (RubyGems) Vendor— Affected before 0.3.0 Fixed in 0.3.0 Patch available GHSA-573x-jhqh-jg36
Remediation
- Fix · CNA Chloride (Puppet) Fixed in 0.3.0
- Fix · GHSA-573x-jhqh-jg36 chloride (RubyGems) Fixed in 0.3.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2018-6517
- 2026-10-03 Alias added: GHSA-573x-jhqh-jg36
References
Sources
- CVE-2018-6517 · CVE Program
- CVE-2018-6517 · NVD
- FIRST EPSS
- GHSA-573x-jhqh-jg36 · GitHub Advisory Database · CC BY 4.0
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