You are viewing this page in an unauthorized frame window. This is a potential security issue, you are being redirected to https://csrc.nist.gov . An official website of the United States government Here’s how you know Here’s how you know Official websites use .gov A .gov website belongs to an official government organization in the United States. Secure .gov websites use HTTPS A lock ( Lock Locked padlock icon ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites. Search Search CSRC MENU Search Search Projects Publications Expand or Collapse Drafts for Public Comment All Public Drafts Final Pubs FIPS (standards) Special Publications (SP s ) IR (interagency/internal reports) CSWP (cybersecurity white papers) ITL Bulletins Project Descriptions Journal Articles Conference Papers Books Topics Expand or Collapse Security & Privacy Applications Technologies Sectors Laws & Regulations Activities & Products News & Updates Events Glossary About CSRC Expand or Collapse Computer Security Division Cryptographic Technology Software Security Group Hardware Security Group Security Engineering and Risk Management Applied Cybersecurity Division Cybersecurity and Privacy Applications National Cybersecurity Center of Excellence (NCCoE) National Initiative for Cybersecurity Education (NICE) Contact Us Information Technology Laboratory Computer Security Resource Center Publications NIST SP 800-126A Rev. 4 SCAP 1.4 Component Specification Version Updates: An Annex to NIST SP 800-126r4 Share to Facebook Share to X Share to LinkedIn Share ia Email Documentation Topics Date Published: June 2026 Author(s) Dragos Prisaca (NIST) , Stephen Quinn (NIST) Abstract The Security Content Automation Protocol (SCAP) is a multi-purpose framework of component specifications that support automated configuration, vulnerability, patch checking, security measurement, and technical control compliance activities. The SCAP version 1.4 specification is defined by the combination of NIST SP 800-126r4, a set of schemas, and this document. This document allows the use of specific minor version updates to SCAP 1.4 component specifications and particular Open Vulnerability and Assessment Language (OVAL) schema versions to provide additional functionality for SCAP 1.4 without causing any loss of existing functionality. The Security Content Automation Protocol (SCAP) is a multi-purpose framework of component specifications that support automated configuration, vulnerability, patch checking, security measurement, and technical control compliance activities. The SCAP version 1.4 specification is defined by the... See full abstract The Security Content Automation Protocol (SCAP) is a multi-purpose framework of component specifications that support automated configuration, vulnerability, patch checking, security measurement, and technical control compliance activities. The SCAP version 1.4 specification is defined by the combination of NIST SP 800-126r4, a set of schemas, and this document. This document allows the use of specific minor version updates to SCAP 1.4 component specifications and particular Open Vulnerability and Assessment Language (OVAL) schema versions to provide additional functionality for SCAP 1.4 without causing any loss of existing functionality. Hide full abstract Keywords eXtensible Configuration Checklist Description Format (XCCDF) ; Open Vulnerability and Assessment Language (OVAL) ; security automation ; security configuration ; Security Content Automation Protocol (SCAP) Control Families None selected Documentation Publication: https://doi.org/10.6028/NIST.SP.800-126Ar4 Download URL Supplemental Material: SCAP Project Publication Parts: SP 800-126 Rev. 4 Document History: 12/11/25: SP 800-126A Rev. 4 (Draft) 06/08/26: SP 800-126A Rev. 4 (Final) Topics Security and Privacy audit & accountability , incident response , maintenance , security automation , threats , vulnerability management Laws and Regulations Cybersecurity Strategy and Implementation Plan , Federal Information Security Modernization Act , OMB Circular A-130 HEADQUARTERS 100 Bureau Drive Gaithersburg, MD 20899 X (link is external) facebook (link is external) linkedin (link is external) instagram (link is external) youtube (link is external) rss govdelivery (link is external) Want updates about CSRC and our publications? Subscribe Contact Us | Our Other Offices Send inquiries to [email protected] Site Privacy Accessibility Privacy Program Copyrights Vulnerability Disclosure No Fear Act Policy FOIA Environmental Policy Scientific Integrity Information Quality Standards Commerce.gov Science.gov USA.gov Vote.gov