CVE-2026-40942 | datasharingframework dsf/dsf-bpe-process-api-v2/dsf-bpe-server up to 2.0.x OIDC Provider control flow (GHSA-xmj9-7625-f634)

VDB-358752 · CVE-2026-40942 · GHSA-XMJ9-7625-F634 DATASHARINGFRAMEWORK DSF/DSF-BPE-PROCESS-API-V2/DSF-BPE-SERVER UP TO 2.0.X OIDC PROVIDER CONTROL FLOW HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 5.1 $0-$5k 1.80+ Summaryinfo A vulnerability, which was classified as problematic, was found in datasharingframework dsf, dsf-bpe-process-api-v2 and dsf-bpe-server up to 2.0.x. This impacts an unknown function of the component OIDC Provider Handler. The manipulation results in control flow. This vulnerability is reported as CVE-2026-40942. The attack can be launched remotely. No exploit exists. You should upgrade the affected component. Detailsinfo A vulnerability, which was classified as problematic, was found in datasharingframework dsf, dsf-bpe-process-api-v2 and dsf-bpe-server up to 2.0.x. Affected is some unknown functionality of the component OIDC Provider Handler. The manipulation with an unknown input leads to a control flow vulnerability. CWE is classifying the issue as CWE-670. The code contains a control flow path that does not reflect the algorithm that the path is intended to implement, leading to incorrect behavior any time this path is navigated. This is going to have an impact on availability. CVE summarizes: 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. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-40942 since 04/15/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. Upgrading to version 2.1.0 eliminates this vulnerability. Applying the patch 31c2e974dfd4351756104ee8c53dbcd666192fef is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version. Productinfo Type Automation Software Vendor datasharingframework Name dsf dsf-bpe-process-api-v2 dsf-bpe-server Version 2.0 License open-source Website Product: https://github.com/datasharingframework/dsf/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA CVSS-B Score: 🔒 CNA CVSS-BT Score: 🔒 CNA Vector: 🔒 CVSSv3info VulDB Meta Base Score: 5.3 VulDB Meta Temp Score: 5.1 VulDB Base Score: 5.3 VulDB Temp Score: 5.1 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Control flow CWE: CWE-670 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: dsf/dsf-bpe-process-api-v2/dsf-bpe-server 2.1.0 Patch: 31c2e974dfd4351756104ee8c53dbcd666192fef Timelineinfo 04/15/2026 CVE reserved 04/22/2026 +7 days Advisory disclosed 04/22/2026 +0 days VulDB entry created 04/22/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: GHSA-xmj9-7625-f634 Status: Confirmed CVE: CVE-2026-40942 (🔒) GCVE (CVE): GCVE-0-2026-40942 GCVE (VulDB): GCVE-100-358752 Entryinfo Created: 04/22/2026 07:29 Changes: 04/22/2026 07:29 (70) Complete: 🔍 Cache ID: 99:CC6:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸