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.
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Affected Vendors & Products
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History
Wed, 22 Apr 2026 19:15:00 +0000
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ssvc
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Wed, 22 Apr 2026 12:15:00 +0000
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Datasharingframework
Datasharingframework dsf Dev.dsf Dev.dsf dsf-bpe-process-api-v2 Dev.dsf dsf-bpe-server |
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| Vendors & Products |
Datasharingframework
Datasharingframework dsf Dev.dsf Dev.dsf dsf-bpe-process-api-v2 Dev.dsf dsf-bpe-server |
Wed, 22 Apr 2026 00:00:00 +0000
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| Description | 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. | |
| Title | DSF: Inverted Time Comparison in OIDC JWKS and Token Cache | |
| Weaknesses | CWE-670 | |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-04-21T21:09:44.537Z
Updated: 2026-04-22T18:11:33.794Z
Reserved: 2026-04-15T20:40:15.519Z
Link: CVE-2026-40942
Updated: 2026-04-22T18:09:06.207Z
Status : Awaiting Analysis
Published: 2026-04-21T22:16:19.700
Modified: 2026-04-22T21:23:52.620
Link: CVE-2026-40942
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