Is CVE-2026-40939 in the CISA KEV catalog?

No. CVE-2026-40939 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the EPSS score for CVE-2026-40939?

CVE-2026-40939 has an EPSS score of 0.15% (5th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2026-40939?

No published fix for CVE-2026-40939 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2026-40939

UNSCORED

NVD

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, OIDC-authenticated sessions had no configured maximum inactivity timeout. Sessions persisted indefinitely after login, even after the OIDC access token expired. This vulnerability is fixed in 2.1.0.

CWE-613

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

CVSS v3.1 Vector

No CVSS vector data available.

Exploit Intelligence

0.15%probability of exploitation in 30 days

5thpercentile

Low risk: more likely to be exploited than 5% of all known CVEs.

References

Other references4

Embed a live status badge for CVE-2026-40939

Markdown

[![CVE-2026-40939](https://tridentstack.com/cve/badge/CVE-2026-40939.svg)](https://tridentstack.com/cve/CVE-2026-40939)

HTML

<a href="https://tridentstack.com/cve/CVE-2026-40939"><img src="https://tridentstack.com/cve/badge/CVE-2026-40939.svg" alt="CVE-2026-40939"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.