OASIS members and other interested parties,
We are pleased to announce that TAXII™ Version 2.0 is now available for public review and comment. Version 2.0 is a complete refresh of the original specification.
Trusted Automated Exchange of Intelligence Information (TAXII) is an application layer protocol used to exchange cyber threat intelligence (CTI) over HTTPS. It enables organizations to share CTI by defining an API that aligns with common sharing models.
TAXII is specifically designed to support the exchange of CTI represented in STIX. As such, the examples and some features in the specification are intended to align with STIX. This does not mean TAXII cannot be used to share data in other formats; it is designed for STIX, but is not limited to STIX.
The documents and related files are available here:
TAXII™ Version 2.0
Committee Specification Draft 01 / Public Review Draft 01
03 May 2017
Editable source (Authoritative):
For your convenience, OASIS provides a complete package of the prose document and any related files in ZIP distribution files. You can download the ZIP file at:
Public Review Period:
OASIS and the OASIS Cyber Threat Intelligence (CTI) TC value your feedback. We solicit input from developers, users and others, whether OASIS members or not, for the sake of improving the interoperability and quality of its technical work.
The public review starts 12 May 2017 at 00:00 UTC and ends 10 June 2017 at 23:59 UTC.
Comments may be submitted to the TC by any person through the use of the OASIS TC Comment Facility which can be used by following the instructions on the TC's "Send A Comment" page, or directly at:
Comments submitted by TC non-members for this work and for other work of this TC are publicly archived and can be viewed at:
All comments submitted to OASIS are subject to the OASIS Feedback License, which ensures that the feedback you provide carries the same obligations at least as the obligations of the TC members. In connection with this public review, we call your attention to the OASIS IPR Policy  applicable especially  to the work of this technical committee. All members of the TC should be familiar with this document, which may create obligations regarding the disclosure and availability of a member's patent, copyright, trademark and license rights that read on an approved OASIS specification.
OASIS invites any persons who know of any such claims to disclose these if they may be essential to the implementation of the above specification, so that notice of them may be posted to the notice page for this TC's work.
Additional information about the specification and the CTI TC can be found at the TC's public home page:
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