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CVE-2026-40942GHSA-XMJ9-7625-F634

DSF: Inverted Time Comparison in OIDC JWKS and Token Cache

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 2.1.0
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • datasharingframework dsf

    fixed in 2.1.0

  • dev.dsf dsf-bpe-process-api-v2

    fixed in 2.1.0

  • dev.dsf dsf-bpe-server

    fixed in 2.1.0

  • dev.dsf:dsf-bpe-process-api-v2Maven

    All versions

  • dev.dsf:dsf-bpe-serverMaven

    All versions

References 3

GitHub · datasharingframework/dsf