Possible timing attack in derivation_endpoint

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 0.010, the 63rd percentile, on 8 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 5 Oct 2020. New records show when each source confirmed them.

Sources

• GitHub Advisory Database: GHSA-5jjv-x4fq-qjwp
• OSV: GHSA-5jjv-x4fq-qjwp
• github.com/shrinerb/shrine/security/advisories/GHSA-5jjv-x4fq-qjwp
• nvd.nist.gov/vuln/detail/CVE-2020-15237
• github.com/shrinerb/shrine/commit/1b27090ce31543bf39f186c20ea47c8250fca2f0
• github.com/rubysec/ruby-advisory-db/blob/master/gems/shrine/CVE-2020-15237.yml
• github.com/shrinerb/shrine

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.