---
id: CVE-2026-113873
title: SmileCDR HAPI FHIR improper data decompression
summary: >-
  SmileCDR HAPI FHIR does not properly handle highly compressed data, allowing
  an unauthenticated attacker to send compressed payloads that exhaust server
  heap or crash certain services when decompressed.
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cvssSource: cna
cwe:
  - CWE-409
vendor: SmileCDR
product: HAPI FHIR
affected:
  - hapi_fhir < *
published: '2026-10-22'
updated: '2026-10-22'
sourceUpdated: '2026-10-22T17:57:52.475Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-113873'
references:
  - url: >-
      https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-294-01.json
    label: url
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-113873'
    label: url
tags:
  - cve.org
ingestedAt: '2026-10-22T22:00:50.360Z'
---

## Overview

SmileCDR HAPI FHIR does not properly handle highly compressed data, allowing an unauthenticated attacker to send compressed payloads that exhaust server heap or crash certain services when decompressed.

## Affected

- `hapi_fhir < *`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.