CVE-2026-55471: hl7 fhir core before 6.9.10 (exclusive); +1 more affected products

CVE-2026-55471. CVSS 3.1 base score 9.1 (CRITICAL, NVD). EPSS 0.00569 (percentile 0.46446), scored 24-Oct-2026.

Affected technology

hl7 fhir core · before 6.9.10 (exclusive)
hapifhir

org.hl7.fhir.core · < 6.9.10
hapifhir

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · No privileges required · No user interaction required

What an attacker can do

Vendor/CNA’s CVSS 4.0 assessment (base score 8.7/10) rates confidentiality impact as high; integrity and availability impact as none. The description does not specify what an attacker can achieve beyond these rated impacts.

Published 25-Oct-2026 19:51 UTC

CWE: CWE-611
CCR priority: 36.5 /100 (P4)
CVSS 3.1: 9.1 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N · NVD
EPSS: 0.00569 · percentile 0.46848 · 2026-10-25
KEV: no

Provenance

FIRST EPSS daily exploit-probability · Source record · observed 2026-10-25 19:52:47.952465+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-25 19:51:06.643138+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-55471.html