CVE-2026-40942
The Data Sharing Framework (DSF) implements a distributed process engine based on the BPMN 2.0 and FHIR R4 standards. Prior to 2.1.0, The OIDC JWKS and Metadata Document caches used an inverted time comparison (isBefore instead of isAfter), causing the cache to never return cached values. Every incoming request triggered a fresh HTTP fetch of the OIDC Metadata Document and JWKS keys from the OIDC provider. The OIDC token cache for the FHIR client connections used an inverted time comparison (isBefore instead of isAfter), causing the cache to never invalidate. Every incoming request returned the same OIDC token even if expired. This vulnerability is fixed in 2.1.0.
Published:Apr 21, 2026
Last Modified:Apr 22, 2026
EPS:Apr 21, 2026
EPSS Score:0.0004
CVSS Score:6.3
Affected Products
Vendor
Product
Action
Vendor
Datasharingframework
Product
Dsf
Datasharingframework
Dsf
Vendor
Dev.dsf
Product
Dsf-bpe-process-api-v2
Dev.dsf
Dsf-bpe-process-api-v2
Vendor
Dev.dsf
Product
Dsf-bpe-server
Dev.dsf
Dsf-bpe-server
Exploits
No exploit reference
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
No CAPEC recorded yet
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
