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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👁 2 Views

The fix for CVE-2026-45367 added RegexTimeout protection to the matches() function in DSTU2016MAY, DSTU3, R4, R4B, and R5, but the DSTU2 module was incompletely patched. In org.hl7.fhir.dstu2, replaceMatches() was updated while matches() at line 2...

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
2