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Description

pygeoapi is a Python server implementation of the OGC API suite of standards. From version 0.23.0 to before version 0.23.3, a raw string path concatenation vulnerability in pygeoapi's STAC FileSystemProvider plugin can allow for requests to STAC collection based collections to expose directories without authentication. The issue manifests when pygeoapi is deployed without a proxy or web front end that would normalize URLs with .. values, along with a resource of type stac-collection defined in configuration. This issue has been patched in version 0.23.3.

PUBLISHED Reserved 2026-04-26 | Published 2026-05-08 | Updated 2026-05-08 | Assigner GitHub_M




HIGH: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Problem types

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Product status

>= 0.23.0, < 0.23.3
affected

References

github.com/...geoapi/security/advisories/GHSA-f6pr-83pg-ghh6

github.com/...ommit/bf25b8695edbdd5476eeffc102b633d1d3e45f52

github.com/geopython/pygeoapi/releases/tag/0.23.3

cve.org (CVE-2026-42351)

nvd.nist.gov (CVE-2026-42351)

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