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Caldera provides a modular platform for modeling, scripting, and executing
adversary behavior. It allows users to construct emulation plans, provides
agents for communicating with the command and control server,
and enables users to evaluate security detections in a
structured, scalable, and repeatable way. With the use of plug-
ins and community-contributed features, Caldera supports a range of use
cases including adversary emulation, purple teaming, detection
engineering, and continuous security validation. Using Caldera,
defenders can emulate known threat actor behavior and perform
other red team activity to evaluate their organization’s defensive
capabilities, test analytics, and find detection gaps. As a modular tool
based on the MITRE ATT&CK framework, Caldera is designed to be
extensible, intelligence-driven, and automation-friendly.
Caldera has been incubating since 2025-12-19.
### Three most important unfinished issues to address before graduating:
1. Caldera GitHub repository needs to be transferred
2. Apache Caldera website needs to be stood up
3. Community growth
### Are there any issues that the IPMC or ASF Board need to be aware of?
- Awaiting response from Apache infra team for GitHub repository transfer
### How has the community developed since the last report?
- Caldera Discord community growing ~500 users
- Caldera GitHub community actively submitting PRs
- GitHub stars reached 6.9k
### How has the project developed since the last report?
- Preparing for GitHub repository transfer to ASF
- Approved 5 PRs from contributors
- Caldera WIKI created. Link: cwiki.apache.org/confluence/display/CALDERA
### How would you assess the podling's maturity?
Please feel free to add your own commentary.
- [X] Initial setup
- [ ] Working towards first release
- [X] Community building
- [ ] Nearing graduation
- [X] Other: Awaiting repository transferring (May 20th).
### Date of last release:
N/A
### When were the last committers or PPMC members elected?
at founding/incubation
### Have your mentors been helpful and responsive?
Yes
### Is the PPMC managing the podling's brand / trademarks?
No known brand or naming issues.
https://issues.apache.org/jira/browse/PODLINGNAMESEARCH-248 approved.
### Signed-off-by:
- [ ] (caldera) Kevin Ratnasekera
Comments:
- [X] (caldera) Francis Chuang
Comments: There were some delays with getting the project into the
incubator, but the PPMC has made significant progress in the last few
months to get the ball rolling.
- [X] (caldera) PJ Fanning
Comments: There was talk of adding some new named PPMC members but the
discussion has not been made official on the private list.
- [ ] (caldera) Gordon King
Comments:
### IPMC/Shepherd notes:
Caldera provides a modular platform for modeling, scripting, and executing
adversary behavior. It allows users to construct emulation plans, provides
agents for communicating with the command and control server,
and enables users to evaluate security detections in a
structured, scalable, and repeatable way. With the use of plug-
ins and community-contributed features, Caldera supports a range of use
cases including adversary emulation, purple teaming, detection
engineering, and continuous security validation. Using Caldera,
defenders can emulate known threat actor behavior and perform
other red team activity to evaluate their organization’s defensive
capabilities, test analytics, and find detection gaps. As a modular tool
based on the MITRE ATT&CK framework, Caldera is designed to be
extensible, intelligence-driven, and automation-friendly.
Caldera has been incubating since 2025-12-19.
### Three most important unfinished issues to address before graduating:
1.
2.
3.
### Are there any issues that the IPMC or ASF Board need to be aware of?
### How has the community developed since the last report?
### How has the project developed since the last report?
### How would you assess the podling's maturity?
Please feel free to add your own commentary.
- [ ] Initial setup
- [ ] Working towards first release
- [ ] Community building
- [ ] Nearing graduation
- [ ] Other:
### Date of last release:
XXXX-XX-XX
### When were the last committers or PPMC members elected?
### Have your mentors been helpful and responsive?
### Is the PPMC managing the podling's brand / trademarks?
### Signed-off-by:
- [ ] (caldera) Kevin Ratnasekera
Comments:
- [ ] (caldera) Francis Chuang
Comments:
- [ ] (caldera) PJ Fanning
Comments: No PPMC member or mentor (except me) has yet signed up to
any mailing list. I have been told that Mitre Legal team are
ready to sign the SGA but the Caldera team email me and refuse to use the
lists, despite me constantly telling them to. It may be time to
consider having IPMC retire the podling.
- [ ] (caldera) Gordon King
Comments:
### IPMC/Shepherd notes:
Justin Mclean: See discussion on Incubator general list
https://lists.apache.org/thread/hmw6zxzc60pktfjk8p2tmn66pzfmvfpw