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HAPI FHIR: Incomplete fix for CVE-2026-45367: DSTU2 FHIRPathEngine.matches() missing RegexTimeout protection allows ReDoS

🗓️ 17 Jun 2026 00:00:00Reported by https://gitlab.com/gitlab-org/security-products/gemnasium-dbType 
gitlab
 gitlab🔗 gitlab.com👁 6 Views

DSTU2 remains vulnerable to DoS in FHIRPathEngine.matches due to missing regex timeout.

Related
Refs
ReporterTitlePublishedViews
Family
CVE		CVE-2026-45367
18 May 202620:23
–cve
CVE		CVE-2026-55470
17 Jun 202618:47
–cve
Github Security Blog		HAPI FHIR: ReDoS via FHIRPath matches()/replaceMatches() in FHIR Validator HTTP Endpoint
18 May 202620:23
–github
Github Security Blog		HAPI FHIR: Incomplete fix for CVE-2026-45367: DSTU2 FHIRPathEngine.matches() missing RegexTimeout protection allows ReDoS
17 Jun 202618:47
–github
GitLab Advisory Database		HAPI FHIR: Incomplete fix for CVE-2026-45367: DSTU2 FHIRPathEngine.matches() missing RegexTimeout protection allows ReDoS
17 Jun 202600:00
–gitlab
GitLab Advisory Database		HAPI FHIR: ReDoS via FHIRPath matches()/replaceMatches() in FHIR Validator HTTP Endpoint
18 May 202600:00
–gitlab
GitLab Advisory Database		HAPI FHIR: ReDoS via FHIRPath matches()/replaceMatches() in FHIR Validator HTTP Endpoint
18 May 202600:00
–gitlab
GitLab Advisory Database		HAPI FHIR: Incomplete fix for CVE-2026-45367: DSTU2 FHIRPathEngine.matches() missing RegexTimeout protection allows ReDoS
17 Jun 202600:00
–gitlab
GitLab Advisory Database		HAPI FHIR: ReDoS via FHIRPath matches()/replaceMatches() in FHIR Validator HTTP Endpoint
18 May 202600:00
–gitlab
GitLab Advisory Database		HAPI FHIR: Incomplete fix for CVE-2026-45367: DSTU2 FHIRPathEngine.matches() missing RegexTimeout protection allows ReDoS
17 Jun 202600:00
–gitlab
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17 Jun 2026 00:00Current
5.2Medium risk
Vulners AI Score5.2
EPSS0.00086
regex timeoutFhirPathEngineDoS vulnerabilityCVE 2026 45367
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