Riskcovery

CVE-2026-40942

DSF: Inverted Time Comparison in OIDC JWKS and Token Cache

State
Published
Severity
6.3 Medium
Published
Apr 21, 2026
Updated
Apr 22, 2026
Reserved
Apr 15, 2026

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
4.06.3 MediumCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:NGitHub_M

Weaknesses

  • CWE-670 Always-Incorrect Control Flow Implementation

Affected Products

ProductVersions
dsfdatasharingframework
  • < 2.1.0Affected
dsf-bpe-process-api-v2dev.dsf
  • < 2.1.0Affected
dsf-bpe-serverdev.dsf
  • < 2.1.0Affected

References

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