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Urgent Notice Amended Final

Ruby on Rails Vulnerabilities: DoS, File Manipulation, XSS

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Summary

CERT-Bund has issued a security advisory for Ruby on Rails, detailing multiple vulnerabilities including Denial of Service, file manipulation, and Cross-Site Scripting. The advisory highlights critical severity with a CVSS Base Score of 9.1 and provides mitigation information for affected versions.

Published by CERT-Bund on wid.cert-bund.de . Detected, standardized, and enriched by GovPing. Review our methodology and editorial standards .
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What changed

CERT-Bund has released a security advisory (WID-SEC-2026-0833) concerning multiple critical vulnerabilities in Ruby on Rails, rated with a CVSS Base Score of 9.1. The vulnerabilities allow for Denial of Service attacks, file manipulation, and Cross-Site Scripting (XSS). Affected versions include Open Source Ruby on Rails prior to 7.2.3.1, 8.0.4.1, and 8.1.2.1, impacting Linux and UNIX operating systems.

Organizations utilizing Ruby on Rails must immediately review their versions and apply available mitigations or update to patched versions (7.2.3.1, 8.0.4.1, 8.1.2.1, or later) to address these critical security risks. Failure to do so could lead to system compromise, data manipulation, and service disruption.

What to do next

  1. Review Ruby on Rails versions for applicability to advisory WID-SEC-2026-0833.
  2. Apply available mitigations or update to patched versions (>= 7.2.3.1, >= 8.0.4.1, >= 8.1.2.1) to address vulnerabilities.
  3. Assess potential impact of file manipulation and XSS vulnerabilities on data integrity and user security.

Archived snapshot

Mar 24, 2026

GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.

[WID-SEC-2026-0833] Ruby on Rails: Mehrere Schwachstellen CVSS Base Score 9.1 (kritisch) CVSS Temporal Score 7.9 (hoch) Remoteangriff ja Datum 23.03.2026 Stand 24.03.2026 Mitigation ja

Betroffene Systeme

Betriebssystem

  • Linux
  • UNIX

Produktbeschreibung

Ruby on Rails ist ein in der Programmiersprache Ruby geschriebenes und quelloffenes Web Application Framework.

Produkte

23.03.2026
- Open Source Ruby on Rails <7.2.3.1

  • Open Source Ruby on Rails <8.0.4.1

  • Open Source Ruby on Rails <8.1.2.1

Angriff

Angriff

Ein Angreifer kann mehrere Schwachstellen in Ruby on Rails ausnutzen, um einen Denial of Service Angriff durchzuführen, um Dateien zu manipulieren, und um einen Cross-Site Scripting Angriff durchzuführen. CVE Informationen Versionshistorie Feedback zum Advisory geben

Named provisions

Betroffene Systeme Angriff

Related changes

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Priority review Mar 25, 2026 • CERT-Bund Security Advisories • Data Privacy & Cybersecurity
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Urgent Mar 19, 2026 • CERT-Bund Security Advisories • Data Privacy & Cybersecurity

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Source

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CERT-Bund Security Advisories wid.cert-bund.de/content/public/securityAdvisory/rss
Data Privacy & Cybersecurity

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Classification

Agency
CERT-Bund
Published
March 23rd, 2026
Instrument
Notice
Legal weight
Non-binding
Stage
Final
Change scope
Substantive
Document ID
WID-SEC-2026-0833

Who this affects

Applies to
Technology companies
Industry sector
5112 Software & Technology
Activity scope
Web Application Security
Geographic scope
Germany DE

Taxonomy

Primary area
Cybersecurity
Operational domain
IT Security
Compliance frameworks
NIST CSF
Topics
Software Vulnerabilities Web Application Security

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