There is a deserialization of untrusted data vulnerability in the Kredis JSON deserialization code
Priority LOW 25CWE-502Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-502.
Summary
There is a deserialization of untrusted data vulnerability in the Kredis JSON deserialization code
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00542 45th percentileScored 2026-11-07
Fix Fixed Kredis JSON (Rails): 1.3.0.1kredis (RubyGems): 1.3.0.1
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Rails | Kredis JSON | 1.3.0.1 to before 1.3.0.1 | 1.3.0.1 | Patch available | CNA |
| — | kredis (RubyGems) | before 1.3.0.1 | 1.3.0.1 | Patch available | GHSA-h2wm-p2vg-6pw4 |
- Kredis JSON VendorRails Affected 1.3.0.1 to before 1.3.0.1 Fixed in 1.3.0.1 Patch available CNA
- kredis (RubyGems) Vendor— Affected before 1.3.0.1 Fixed in 1.3.0.1 Patch available GHSA-h2wm-p2vg-6pw4
Remediation
- Fix · CNA Kredis JSON (Rails) Fixed in 1.3.0.1
- Fix · GHSA-h2wm-p2vg-6pw4 kredis (RubyGems) Fixed in 1.3.0.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2023-27531
- 2026-10-03 Alias added: GHSA-h2wm-p2vg-6pw4
References
Other 6
- https://discuss.rubyonrails.org/t/cve-2023-27531-possible-deserialization-of-untrusted-data-vulnerability-in-kredis-json/82467
- https://github.com/rails/kredis/commit/d576b7ae5c8d3d74eeb4bd84cad0aa64ffc299fa
- https://discuss.rubyonrails.org/t/cve-2023-27531-possible-deserialization-of-untrusted-data-vulnerability-in-kredis-json/82467#post_1
- https://github.com/rails/kredis
- https://github.com/rails/kredis/releases/tag/v1.3.0.1
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/kredis/CVE-2023-27531.yml
More Rails vulnerabilities
- TI-2014-00124 Directory traversal vulnerability in actionpack/lib/abstract_controller/base.rb in the… KEVCVSS 3.1HIGH 7.5
- TI-2019-03828 Path traversal in Rails https://github.com/rails/rails KEVCVSS 3.1HIGH 7.5
- TI-2016-00672 Directory traversal vulnerability in Action View in Ruby on Rails before 3.2.22.1, 4.0.x… KEVCVSS 3.1HIGH 7.5
- TI-2019-03830 Command injection in Rails https://github.com/rails/rails CVSS 3.1CRITICAL 9.8
- TI-2026-47043 Action Pack: Possible arbitrary file read and remote code execution in Active Storage variant processing CVSS 4.0CRITICAL 9.5
- TI-2025-18040 Command injection in Rails activestorage CVSS 4.0CRITICAL 9.2
Sources
- CVE-2023-27531 · CVE Program
- CVE-2023-27531 · NVD
- FIRST EPSS
- GHSA-h2wm-p2vg-6pw4 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences