Vulnerability · Published Aug 7, 2026 · Assigned by GitHub_M

CVE-2026-47660Pathling: Explicit oauthMetadataUrl in bulk-submit allows OAuth client credential exfiltration

High 8.7

In plain English

A high-severity server-side request forgery in pathling from aehrc. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 46% of all known vulnerabilities).

Severity (CVSS 4.0)8.7High

Exploit odds (30 days)0.5%top 54.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Pathling is a set of tools that make it easier to use FHIR and clinical terminology within health data analytics. Prior to version 2.0.0 of Pathling Server, Pathling's bulk-submit operation allows an allowed submitter to supply an explicit `oauthMetadataUrl` parameter that is not validated against `pathling.bulkSubmit.allowableSources`. When present, the bulk-submit OAuth flow trusts metadata and the returned `token_endpoint` from the caller-chosen location, then builds outbound OAuth client authentication directly from the submitter's stored credentials. This is fixed in Pathling Server 2.0.0.

Affected products (as reported)

Vendor	Product	Versions
aehrc	pathling	< 2.0.0

Weakness: CWE-522, CWE-918 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

References

https://github.com/aehrc/pathling/security/advisories/GHSA-245h-c573-9vr5 x_refsource_CONFIRM