CVE-2026-45367GHSA-3653-68V6-RQ57
HAPI FHIR: ReDoS via FHIRPath matches()/replaceMatches() in FHIR Validator HTTP Endpoint
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 6.9.7
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: yes
- Technical impact: partial
Summary
HAPI FHIR is a complete implementation of the HL7 FHIR standard for healthcare interoperability in Java. Prior to 6.9.7, the FHIRPathEngine implementation passes user-controlled regular expressions from matches(), matchesFull(), and replaceMatches() to Java regex operations without effective timeouts, allowing catastrophic backtracking and denial of service. This issue is fixed in version 6.9.7.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: yes · Technical impact: partial
- Record last updated
Affected versions
- hapifhir org.hl7.fhir.core
fixed in 6.9.7
- ca.uhn.hapi.fhir:org.hl7.fhir.dstu2Maven
fixed in 6.9.7
- ca.uhn.hapi.fhir:org.hl7.fhir.dstu2016mayMaven
fixed in 6.9.7
- ca.uhn.hapi.fhir:org.hl7.fhir.dstu3Maven
fixed in 6.9.7
- ca.uhn.hapi.fhir:org.hl7.fhir.r4Maven
fixed in 6.9.7
- ca.uhn.hapi.fhir:org.hl7.fhir.r4bMaven
fixed in 6.9.7
- ca.uhn.hapi.fhir:org.hl7.fhir.r5Maven
fixed in 6.9.7
- ca.uhn.hapi.fhir:org.hl7.fhir.validationMaven
fixed in 6.9.7
- ca.uhn.hapi.fhir:org.hl7.fhir.validation.cliMaven
fixed in 6.9.7