CVE-2026-113873

SmileCDR HAPI FHIR does not properly handle highly compressed data, allowing an unauthenticated…

Risk score: 56/100
CVSS: 7.5 v3.1
Exploit chance (30 days): 0.4%
Published: 22 Oct 2026

Open in the live forecast Today's forecast

What to know

What it is: 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: See advisory
Fix: Apply the vendor's security update; see the linked advisory.
Exploitation: No known exploitation

Why it is Yellow

CVSS 7.5 high
Remotely exploitable without logging in

References

https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-294-01.json
https://www.cve.org/CVERecord?id=CVE-2026-113873
https://abhinavagarwal07.github.io/posts/hapi-fhir-authorization-findings/

Original description

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.

Last activity 22 Oct 2026. Patch Forecast updates every hour.