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Safety, Security, and Privacy for Open-Source Ecosystems (Safe-OSE) is a grant program from the National Science Foundation (NSF) that funds open-source ecosystems (OSEs) to address significant safety, security, and privacy vulnerabilities — both technical (code vulnerabilities, side-channels) and socio-technical (supply chain, insider threats).
The program supports any type of open-source ecosystem including software, hardware, scientific methodologies, manufacturing processes, and data platforms. Awards provide up to $500,000 in Year 1 and up to $1,000,000 in Year 2, for a total of up to $1,500,000 per award. Applications for the current cycle were due April 28, 2026.
Eligible applicants are open-source ecosystems and supporting organizations.
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Safety, Security, and Privacy of Open-Source Ecosystems (Safe-OSE) | NSF - U.S. National Science Foundation Safety, Security, and Privacy of Open-Source Ecosystems (Safe-OSE) NSF's implementation of the revised 2 CFR NSF Financial Assistance awards (grants and cooperative agreements) made on or after October 1, 2024, will be subject to the applicable set of award conditions, dated October 1, 2024, available on the NSF website .
These terms and conditions are consistent with the revised guidance specified in the OMB Guidance for Federal Financial Assistance published in the Federal Register on April 22, 2024.
Important information for proposers All proposals must be submitted in accordance with the requirements specified in this funding opportunity and in the NSF Proposal & Award Policies & Procedures Guide (PAPPG) that is in effect for the relevant due date to which the proposal is being submitted. It is the responsibility of the proposer to ensure that the proposal meets these requirements.
Submitting a proposal prior to a specified deadline does not negate this requirement.
Updates to NSF Research Security Policies On July 10, 2025, NSF issued an Important Notice providing updates to the agency's research security policies, including a research security training requirement, Malign Foreign Talent Recruitment Program annual certification requirement, prohibition on Confucius institutes and an updated FFDR reporting and submission timeline.
Supports efforts to address safety, security and privacy vulnerabilities in open-source ecosystems to enhance their resilience and ability to manage current and future risks. Supports efforts to address safety, security and privacy vulnerabilities in open-source ecosystems to enhance their resilience and ability to manage current and future risks.
Vulnerabilities in an open-source product and/or its continuous development, integration and deployment infrastructure can potentially be exploited to attack any user (human, organization, and/or another product/entity) of the product. To respond to the growing threats to the safety, security, and privacy of open-source ecosystems (OSEs), NSF is launching the Safety, Security, and Privacy for Open-Source Ecosystems (Safe-OSE) program.
This program solicits proposals from OSEs, including those not originally funded by NSF’s Pathways to Enable Open-Source Ecosystems (POSE) program, to address significant safety, security, and/or privacy vulnerabilities, both technical (e.g., vulnerabilities in code and side-channels) and socio-technical (e.g., supply chain, insider threats).
Although most open-source products are software-based, it is important to note that Safe-OSE applies to any type of OSE, including those based on scientific methodologies, models, and processes; manufacturing processes and process specifications; materials formulations; programming languages and formats; hardware instruction sets; system designs or specifications; and data platforms.
The goal of the Safe-OSE program is to catalyze meaningful improvements in the safety, security, and privacy of the targeted OSE that the OSE does not currently have the resources to undertake.
Funds from this program should be directed toward efforts to enhance the safety, security, and privacy characteristics of the open-source product and its supply chain as well as to bolster the ecosystem’s capabilities for managing current and future risks, attacks, breaches, and responses.
Updates and announcements NSF invests in safeguarding open-source ecosystems NSF Safe-OSE program resources available November 4, 2024 - Office Hours: Safe-OSE Preliminary Proposal Preparation October 10, 2024 - Webinar: Introducing the NSF Safe-OSE Program Funded as part of this Program Safety, Security, and Privacy of Open-Source Ecosystems (Safe-OSE) Awards made through this program Browse projects funded by this program Map of recent awards made through this program Directorate for Computer and Information Science and Engineering (CISE) Directorate for STEM Education (EDU) Directorate for Technology, Innovation and Partnerships (TIP) Division of Translational Impacts (TIP/TI)
Key questions and narrative sections extracted from the solicitation.
Describe the current status of your open-source ecosystem (OSE), including repository pointers, managing organization structure, and evidence of a robust developer community and substantial user base
Describe the national, societal, and economic importance of your OSE and the broader impacts of addressing its vulnerabilities
Identify and describe the targeted vulnerability classes, attack methods, and prior security incidents affecting your OSE
Present a detailed development plan with separate Year 1 (up to $500K) and Year 2 (up to $1M) subsections, including milestones and deliverables
Describe your evaluation plan with specific success metrics, testing strategies, and for software OSEs, demonstrable progress toward OpenSSF 'MUST' badging criteria
Provide eligibility compliance documentation including PI qualifications and organizational ownership/control information
List project personnel, collaborators, and partner organizations including their roles and responsibilities
Scoring criteria used to review proposals for this grant.
Based on current listing details, eligibility includes: Open-source ecosystems and their supporting organizations; organizations may submit up to 2 preliminary proposals; details per solicitation NSF 24-608. Applicants should confirm final requirements in the official notice before submission.
Current published award information indicates Up to $1,500,000 per award (Year 1: up to $500,000; Year 2: up to $1,000,000) Always verify allowable costs, matching requirements, and funding caps directly in the sponsor documentation.
The current target date is April 28, 2026. Build your timeline backwards from this date to cover registrations, approvals, attachments, and final submission checks.
Federal grant success rates typically range from 10-30%, varying by agency and program. Build a strong proposal with clear objectives, measurable outcomes, and a well-justified budget to improve your chances.
Requirements vary by sponsor, but typically include a project narrative, budget justification, organizational capability statement, and key personnel CVs. Check the official notice for the complete list of required attachments.
Yes — AI tools like Granted can help research funders, draft proposal sections, and check compliance. However, always review and customize AI-generated content to reflect your organization's unique strengths and the specific requirements of the solicitation.
Review timelines vary by funder. Federal agencies typically take 3-6 months from submission to award notification. Foundation grants may be faster, often 1-3 months. Check the program's timeline in the official solicitation for specific dates.
Many federal programs offer multi-year funding or allow competitive renewals. Check the official solicitation for continuation and renewal policies. Non-competing continuation applications are common for multi-year awards.
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