CVE Explorer
CVE-2026-55471
HAPI FHIR is a complete implementation of the HL7 FHIR standard for healthcare interoperability in Java. Prior to 6.9.10, org.hl7.fhir.utilities.XsltUtilities saxonTransform(...) overloads instantiated a bare net.sf.saxon.TransformerFactoryImpl() without ACCESS_EXTERNAL_DTD or ACCESS_EXTERNAL_STYLESHEET restrictions, allowing an attacker who controls or can tamper with transformed XML to trigger XML External Entity injection for local file disclosure and blind XXE or SSRF to arbitrary URLs reach
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":"< 6.9.10"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:764d3bbba922936d262e0999c7f490fb8f946262edf4c0c072f0c709cd6c9a22 · sha256:0833b53949097504… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:764d3bbba922936d262e0999c7f490fb8f946262edf4c0c072f0c709cd6c9a22 · sha256:0833b53949097504… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-611","description":"CWE-611: Improper Restriction of XML External Entity Reference","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:764d3bbba922936d262e0999c7f490fb8f946262edf4c0c072f0c709cd6c9a22 · sha256:0833b53949097504… · /containers/cna/problemTypes/0/descriptions/0
Source references
4 source assertions{"name":"https://github.com/hapifhir/org.hl7.fhir.core/commit/01ca2ecdefec9b33204d2495fe78af8c0dc52298","tags":["x_refsource_MISC"],"url":"https://github.com/hapifhir/org.hl7.fhir.core/commit/01ca2ecdefec9b33204d2495fe78af8c0dc52298"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:764d3bbba922936d262e0999c7f490fb8f946262edf4c0c072f0c709cd6c9a22 · sha256:0833b53949097504… · /containers/cna/references/1
{"name":"https://github.com/hapifhir/org.hl7.fhir.core/releases/tag/6.9.10","tags":["x_refsource_MISC"],"url":"https://github.com/hapifhir/org.hl7.fhir.core/releases/tag/6.9.10"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:764d3bbba922936d262e0999c7f490fb8f946262edf4c0c072f0c709cd6c9a22 · sha256:0833b53949097504… · /containers/cna/references/2
{"name":"https://github.com/hapifhir/org.hl7.fhir.core/security/advisories/GHSA-2f55-g35j-5jmf","tags":["x_refsource_CONFIRM"],"url":"https://github.com/hapifhir/org.hl7.fhir.core/security/advisories/GHSA-2f55-g35j-5jmf"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:764d3bbba922936d262e0999c7f490fb8f946262edf4c0c072f0c709cd6c9a22 · sha256:0833b53949097504… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/hapifhir/org.hl7.fhir.core/security/advisories/GHSA-2f55-g35j-5jmf"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:764d3bbba922936d262e0999c7f490fb8f946262edf4c0c072f0c709cd6c9a22 · sha256:0833b53949097504… · /containers/adp/0/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.