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TI-2026-79413 Aliases CVE-2026-113873GHSA-36fr-h72x-63ph

Decompression flaw in SmileCDR HAPI FHIR enables denial of service

Priority MEDIUM 44CWE-409Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

SmileCDR HAPI FHIR from 0 before * is affected. The product does not properly handle highly compressed data (CWE-409). An unauthenticated remote attacker can send compressed payloads that exhaust server heap or crash certain services when decompressed.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00522 44th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
SmileCDRHAPI FHIRall versions—No fix listedCNA
  • HAPI FHIR VendorSmileCDR Affected all versions Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for SmileCDR HAPI FHIR.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

  1. 2026-10-22 Threatist record created from CVE-2026-113873
  2. 2026-10-22 Alias added: GHSA-36fr-h72x-63ph
  3. 2026-10-23 Priority changed: MEDIUM → LOW
  4. 2026-10-23 1 new reference · CNA
  5. 2026-11-06 CISA SSVC decision points changed
  6. 2026-11-06 Priority changed: LOW → MEDIUM

References

Advisory 2

Other 1

  • TI-2026-79414 Incorrect authorization in SmileCDR HAPI FHIR lets tenants cross partitions CVSS 4.0HIGH 8.6
  • TI-2026-79416 Incorrect authorization in SmileCDR HAPI FHIR exposes resource contents CVSS 4.0MEDIUM 5.3
  • TI-2026-79415 Missing authorization in SmileCDR HAPI FHIR allows unauthorized reads CVSS 4.0LOW 2.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences