Kredis JSON Possible Deserialization of Untrusted Data Vulnerability

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

• CISA KEV Not listed.
• EPSS 0.0054, the 45th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the GitHub Advisory Database, published 9 Jun 2023. New records show when each source confirmed them.

Sources

• GitHub Advisory Database: GHSA-h2wm-p2vg-6pw4
• OSV: GHSA-h2wm-p2vg-6pw4
• nvd.nist.gov/vuln/detail/CVE-2023-27531
• github.com/rails/kredis/commit/d576b7ae5c8d3d74eeb4bd84cad0aa64ffc299fa
• discuss.rubyonrails.org/t/cve-2023-27531-possible-deserialization-of-untrusted-data-vulnerability-in-kredis-json/82467
• discuss.rubyonrails.org/t/cve-2023-27531-possible-deserialization-of-untrusted-data-vulnerability-in-kredis-json/82467#post_1
• github.com/rails/kredis
• github.com/rails/kredis/releases/tag/v1.3.0.1
• github.com/rubysec/ruby-advisory-db/blob/master/gems/kredis/CVE-2023-27531.yml

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.