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Open Source Security Foundation (OpenSSF)

The Open Source Security Foundation (OpenSSF) is a collaborative initiative under the Linux Foundation, dedicated to improving security in open-source software. It brings together industry leaders, developers, and security experts to address vulnerabilities and enhance the supply chain security of open-source projects.

The Linux Foundation

by The Linux Foundation

28 projects ・ Updated 13 May 2025

Project
Contributors
Organizations
Software value
Sigstore
2,147
676
$18M
Open Source Security Foundation (OpenSSF)
1,745
543
$673M
OpenSSF Scorecard
844
341
$56M
Repository Service for TUF
436
221
$1.2M
GUAC
429
118
$1.8B
Zarf
425
105
$3.2M
Vulnerability Disclosures Working Group
315
141
$2.4M
Best Practices For OSS Developers Working Group
274
121
$4.9M
Security Software Repositories Working Group
254
107
$2.7M
SLSA
176
68
$40M
Alpha-Omega
166
55
$1M
Allstar
151
63
$527K
Security Tooling Working Group
119
72
$382K
gittuf
113
37
$1.6M
Criticality Score
105
51
$339K
Protobom
71
29
$22M
Edu.sig
61
37
$597K
Supply Chain Integrity Working Group
52
31
$140K
S2C2F
44
21
$176K
Metrics and Metadata Working Group
38
22
$163K
SIRT
23
9
$131K
Security Metrics
13
1
$0
CTi
0
0
$0
Fuzz Introspector
0
0
$0
OSV Schema
0
0
$0
Package Analysis/Feeds
0
0
$0
SBOMit
0
0
$0
Security Insights Spec
0
0
$0
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