Active Record logging vulnerable to ANSI escape injection

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 0.0064, the 50th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

1. 31 Oct 2026, 15:16 UTC First seen by agentprime
2. 31 Oct 2026, 15:16 UTC Confirmed by OSV

Sources

• GitHub Advisory Database: GHSA-76r7-hhxj-r776
• OSV: GHSA-76r7-hhxj-r776
• github.com/rails/rails/security/advisories/GHSA-76r7-hhxj-r776
• nvd.nist.gov/vuln/detail/CVE-2025-55193
• github.com/rails/rails/commit/3beef20013736fd52c5dcfdf061f7999ba318290
• github.com/rails/rails/commit/568c0bc2f1e74c65d150a84b89a080949bf9eb9b
• github.com/rails/rails/commit/6a944ca4805e72050a0fbb1a461534eb760d3202
• github.com/rails/rails
• github.com/rubysec/ruby-advisory-db/blob/master/gems/activerecord/CVE-2025-55193.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.