CVE-2026-81875— HAPI FHIR: SHCParser unbounded DEFLATE decompression causes denial of service
一分钟漏洞结论
影响对象
hapifhir org.hl7.fhir.core
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
HAPI FHIR is a complete implementation of the HL7 FHIR standard for healthcare interoperability in Java. Prior to version 6.9.12, SHCParser in org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/elementmodel/SHCParser.java can consume attacker-controlled Smart Healt
影响版本矩阵 1
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| hapifhir | org.hl7.fhir.core | < 6.9.12 |
affected |
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一、 漏洞 CVE-2026-81875 基础信息
漏洞信息
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Vulnerability Title
HAPI FHIR: SHCParser unbounded DEFLATE decompression causes denial of service
来源: CVE Program / CVE List V5
Vulnerability Description
HAPI FHIR is a complete implementation of the HL7 FHIR standard for healthcare interoperability in Java. Prior to version 6.9.12, SHCParser in org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/elementmodel/SHCParser.java can consume attacker-controlled Smart Health Card JWT content whose header contains zip: "DEF" and whose small raw-DEFLATE payload expands to a very large value. SHCParser.decodeJWT() passes the decoded payload to SHCParser.inflate(), which accumulates all decompressed bytes in a ByteArrayOutputStream without an output-size limit before JSON parsing, and SHCParser.decompress() contains the same unbounded pattern. An application or validator service that accepts attacker-supplied SHC content can therefore suffer excessive heap allocation, severe garbage-collection pressure, request failure, process instability, or process termination. This issue is fixed in version 6.9.12.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
来源: CVE Program / CVE List V5
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| hapifhir | org.hl7.fhir.core | < 6.9.12 | - |
|
二、漏洞 CVE-2026-81875 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-81875 补丁与修复 (2)
CVE-2026-81875 其他参考 (3)
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Release 6.9.11 · hapifhir/org.hl7.fhir.core · GitHub x_refsource_MISC
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Release 6.9.12 · hapifhir/org.hl7.fhir.core · GitHub x_refsource_MISC
IV. Related Vulnerabilities
V. Comments for CVE-2026-81875
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