MITM based Zip Slip in `org.hl7.fhir.publisher:org.hl7.fhir.publisher`
Impact
MITM can enable Zip-Slip.
Vulnerability
Vulnerability 1: Publisher.java
There is no validation that the zip file being unpacked has entries that are not maliciously writing outside of the intended destination directory.
Vulnerability 2: WebSourceProvider.java
There is a check for malicious zip entries here, but it is not covered by test cases and could potentially be reverted in future changes.
Vulnerability 3: ZipFetcher.java
This retains the path for Zip files in FetchedFile entries, which could later be used to output malicious entries to another compressed file or file system.
Vulnerability 4: IGPack2NpmConvertor.java
The loadZip method retains the path for entries in the zip file, which could later be used to output malicious entries to another compressed file or file system.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | ca.uhn.hapi.fhir:org.hl7.fhir.convertors | < 5.6.92 | 5.6.92 |
| Java / Kotlin (Maven) | ca.uhn.hapi.fhir:org.hl7.fhir.core | < 5.6.92 | 5.6.92 |
| Java / Kotlin (Maven) | ca.uhn.hapi.fhir:org.hl7.fhir.r4b | < 5.6.92 | 5.6.92 |
| Java / Kotlin (Maven) | ca.uhn.hapi.fhir:org.hl7.fhir.r5 | < 5.6.92 | 5.6.92 |
| Java / Kotlin (Maven) | ca.uhn.hapi.fhir:org.hl7.fhir.utilities | < 5.6.92 | 5.6.92 |
| Java / Kotlin (Maven) | ca.uhn.hapi.fhir:org.hl7.fhir.validation | < 5.6.92 | 5.6.92 |
| Java / Kotlin (Maven) | org.hl7.fhir.publisher:org.hl7.fhir.publisher | < 1.2.30 | 1.2.30 |
References
- https://github.com/HL7/fhir-ig-publisher/security/advisories/GHSA-xr8x-pxm6-prjg
- https://github.com/hapifhir/org.hl7.fhir.core/security/advisories/GHSA-jqh6-9574-5x22
- https://nvd.nist.gov/vuln/detail/CVE-2023-24057
- https://github.com/hapifhir/org.hl7.fhir.core/commit/b50aec59124416b7315a49220cfc3999223414cc
- https://github.com/hapifhir/org.hl7.fhir.core
- https://github.com/HL7/fhir-ig-publisher
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H- Weakness (CWE)
CWE-22- Platform
- Java / Kotlin (Maven)
- Package
ca.uhn.hapi.fhir:org.hl7.fhir.convertors, ca.uhn.hapi.fhir:org.hl7.fhir.core, ca.uhn.hapi.fhir:org.hl7.fhir.r4b- Disclosed
- 23.01.2023
- Updated
- 11.10.2026 12:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-jqh6-9574-5x22 - CC BY 4.0
OSV / GitHub Advisory Database - GHSA-xr8x-pxm6-prjg - CC BY 4.0
Vulnerability history: ca.uhn.hapi.fhir:org.hl7.fhir.core
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 4
- First → latest
- 01.2023 03.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- High 2
- Medium 1
Disclosures per year
- 2023: 2
- 2024: 0
- 2025: 0
- 2026: 2
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MITM based Zip Slip in `org.hl7.fhir.publisher:org.hl7.fhir.publisher` this entry
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