CVE-2026-113873

HIGH 7.5

SmileCDR HAPI FHIR improper data decompression

CVSS Score

7.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-409
Vendor	smilecdr
Product	hapi fhir
Published	Oct 22, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Affected Versions

SmileCDR / HAPI FHIR

0 < *

References

NVD ↗ CVE.org ↗ EPSS Data ↗

raw.githubusercontent.com: https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-294-01.json cve.org: https://www.cve.org/CVERecord?id=CVE-2026-113873

Credits

Abhinav Agarwal