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CVE-2026-45367

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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:6576c8973a037defc357093ab4d30ecdc4c7ecf27da92605ca7de18351d22d3c
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"org.hl7.fhir.core","vendor":"hapifhir","versions":[{"status":"affected","version":"< 6.9.7"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:cf414bb27516df8a895775454913e5fa2c73c8ea98e94df5a7178c40187df67c · sha256:c56795ebff4f7b23… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:cf414bb27516df8a895775454913e5fa2c73c8ea98e94df5a7178c40187df67c · sha256:c56795ebff4f7b23… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-1333","description":"CWE-1333: Inefficient Regular Expression Complexity","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:cf414bb27516df8a895775454913e5fa2c73c8ea98e94df5a7178c40187df67c · sha256:c56795ebff4f7b23… · /containers/cna/problemTypes/0/descriptions/0

Source references

6 source assertions
{"name":"https://github.com/hapifhir/org.hl7.fhir.core/commit/275d015c680ce9f90cbe285596e50118e472bf24","tags":["x_refsource_MISC"],"url":"https://github.com/hapifhir/org.hl7.fhir.core/commit/275d015c680ce9f90cbe285596e50118e472bf24"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:cf414bb27516df8a895775454913e5fa2c73c8ea98e94df5a7178c40187df67c · sha256:c56795ebff4f7b23… · /containers/cna/references/3
{"name":"https://github.com/hapifhir/org.hl7.fhir.core/commit/e08982d2b6f6dcd6c670a762d9cf999179fbe4ed","tags":["x_refsource_MISC"],"url":"https://github.com/hapifhir/org.hl7.fhir.core/commit/e08982d2b6f6dcd6c670a762d9cf999179fbe4ed"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:cf414bb27516df8a895775454913e5fa2c73c8ea98e94df5a7178c40187df67c · sha256:c56795ebff4f7b23… · /containers/cna/references/4
{"name":"https://github.com/hapifhir/org.hl7.fhir.core/pull/2403","tags":["x_refsource_MISC"],"url":"https://github.com/hapifhir/org.hl7.fhir.core/pull/2403"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:cf414bb27516df8a895775454913e5fa2c73c8ea98e94df5a7178c40187df67c · sha256:c56795ebff4f7b23… · /containers/cna/references/1
{"name":"https://github.com/hapifhir/org.hl7.fhir.core/pull/2463","tags":["x_refsource_MISC"],"url":"https://github.com/hapifhir/org.hl7.fhir.core/pull/2463"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:cf414bb27516df8a895775454913e5fa2c73c8ea98e94df5a7178c40187df67c · sha256:c56795ebff4f7b23… · /containers/cna/references/2
{"name":"https://github.com/hapifhir/org.hl7.fhir.core/releases/tag/6.9.7","tags":["x_refsource_MISC"],"url":"https://github.com/hapifhir/org.hl7.fhir.core/releases/tag/6.9.7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:cf414bb27516df8a895775454913e5fa2c73c8ea98e94df5a7178c40187df67c · sha256:c56795ebff4f7b23… · /containers/cna/references/5
{"name":"https://github.com/hapifhir/org.hl7.fhir.core/security/advisories/GHSA-3653-68v6-rq57","tags":["x_refsource_CONFIRM"],"url":"https://github.com/hapifhir/org.hl7.fhir.core/security/advisories/GHSA-3653-68v6-rq57"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:cf414bb27516df8a895775454913e5fa2c73c8ea98e94df5a7178c40187df67c · sha256:c56795ebff4f7b23… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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