Arbitrary Code Execution in Rdoc

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 0.015, the 74th percentile, on 9 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 1 Sept 2021. New records show when each source confirmed them.

Sources

• GitHub Advisory Database: GHSA-ggxm-pgc9-g7fp
• OSV: GHSA-ggxm-pgc9-g7fp
• nvd.nist.gov/vuln/detail/CVE-2021-31799
• github.com/ruby/rdoc/commit/a7f5d6ab88632b3b482fe10611382ff73d14eed7
• github.com/ruby/rdoc
• github.com/rubysec/ruby-advisory-db/blob/master/gems/rdoc/CVE-2021-31799.yml
• lists.debian.org/debian-lts-announce/2021/10/msg00009.html
• security-tracker.debian.org/tracker/CVE-2021-31799
• security.gentoo.org/glsa/202401-05
• security.netapp.com/advisory/ntap-20210902-0004
• www.oracle.com/security-alerts/cpuapr2022.html
• www.ruby-lang.org/en/news/2021/05/02/os-command-injection-in-rdoc

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.