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 800-126 Rev. 4 Technical Specification for the Security Content Automation Protocol (SCAP): SCAP Version 1.4 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) , Jack Vander Pol (NIWC Atlantic) , Daniel Harris (NIWC Atlantic) Abstract The Security Content Automation Protocol (SCAP) is a suite of specifications that standardize the format and nomenclature by which software flaw and security configuration information is communicated, both to machines and humans. This publication, along with its annex (NIST Special Publication 800-126Ar4) and a set of schemas, collectively define the technical composition of SCAP version 1.4 in terms of its component specifications, their interrelationships and interoperation, and the requirements for SCAP content. The Security Content Automation Protocol (SCAP) is a suite of specifications that standardize the format and nomenclature by which software flaw and security configuration information is communicated, both to machines and humans. This publication, along with its annex (NIST Special Publication... See full abstract The Security Content Automation Protocol (SCAP) is a suite of specifications that standardize the format and nomenclature by which software flaw and security configuration information is communicated, both to machines and humans. This publication, along with its annex (NIST Special Publication 800-126Ar4) and a set of schemas, collectively define the technical composition of SCAP version 1.4 in terms of its component specifications, their interrelationships and interoperation, and the requirements for SCAP content. Hide full abstract Keywords checklists ; patch verification ; security automation ; security checklists ; security configuration ; Security Content Automation Protocol (SCAP) ; software flaws ; vulnerabilities Control Families None selected Documentation Publication: https://doi.org/10.6028/NIST.SP.800-126r4 Download URL Supplemental Material: SCAP project Publication Parts: SP 800-126A Rev. 4 Document History: 12/11/25: SP 800-126 Rev. 4 (Draft) 06/08/26: SP 800-126 Rev. 4 (Final) Topics Security and Privacy acquisition , audit & accountability , digital signatures , incident response , maintenance , risk assessment , security automation , threats , vulnerability management Laws and Regulations 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