Security

16 data model standards serving security. Every one confirmed against its steward's own site.

Standard	Steward	Layer	Access	Modernity
CACAO Security Playbooks	OASIS	Information Model	open	83.0 Current
CSAF (Common Security Advisory Framework)	OASIS	Exchange Schema	open	—
CycloneDX	OWASP / Ecma	Information Model	open	83.0 Current
IODEF (RFC 7970)	IETF	Exchange Schema	open	60.2 Modernizing
KMIP (Key Management Interoperability Protocol)	OASIS	Information Model	open	68.0 Modernizing
MISP core format	MISP Project / CIRCL	Exchange Schema	—	—
OCSF (Open Cybersecurity Schema Framework)	OCSF / Linux Foundation	Information Model	open	73.0 Current
OSV Schema	OpenSSF	Exchange Schema	open	74.2 Current
OpenC2	OASIS	Exchange Schema	open	66.7 Modernizing
SCAP (Security Content Automation Protocol)	NIST	Information Model	—	—
SPDX	Linux Foundation	Information Model	open	87.1 Current
STIX / TAXII	OASIS CTI TC	Information Model	open	70.0 Modernizing
Sigma detection rules	SigmaHQ community	Exchange Schema	—	59.7 Modernizing
X.509 / PKIX certificate profile	ITU-T / IETF	Information Model	spec sold	43.0 Legacy
XACML	OASIS	Information Model	open	68.0 Modernizing
YARA rules	VirusTotal / community	Exchange Schema	—	—