Rails: 21 security issues

Rails

Rails versions 8.0.5.2 and 8.1.4.1 released to address 21 security issues

Do this now

Check the Rails vendor advisory for a fix to the 21 security issues and restrict access to affected apps meanwhile.

First seen: 4 Nov 2026
Last update: 4 Nov 2026, 06:18 UTC
Source: news
On the menu as: Ruby / Rails

Check this repository for exposure to one security incident from pwned.coffee. Report first, change nothing until I say so.

## Rails: 21 security issues
Severity: unknown. Patch status: fix status unknown.
Affected: Rails

Rails versions 8.0.5.2 and 8.1.4.1 released to address 21 security issues

## Steps
1. Search the repo, its CI and infra config for Rails. If present, report the version in use and whether it's affected.
2. No source names a fix yet; check the vendor advisory. Until one ships: restrict network access to it.

## Report
A table: file, product or package, version in use, affected yes/no, exact fix. Then anything a human has to check outside the repo.

If you have the pwned.coffee MCP server (https://pwned.coffee/mcp), call lookup_cve for the latest, and check_repo with this repo's lockfiles, Dockerfiles and workflows for a full receipt.
Sources: https://seclists.org/oss-sec/2026/q4/509
https://pwned.coffee/i/rails-21-security-issues

Timeline

4 Nov 2026, 06:18 UTC
Fix status: patched → unknown.
4 Nov 2026
First reported.

Receipt

Exploitation: No known exploitation
Score: No CVSS published yet: severity unknown.
Last checked: 4 Nov 2026, 08:18 UTC

Sources: KEV – CVE record – Vendor –

Sources

seclists.org: Rails security releases: 8.0.5.2 and 8.1.4.1

Totalone coffee