CVE-2026-42351CWE-22

pygeoapi: Path Traversal in STAC FileSystemProvider

High · published May 8, 2026

CVSS v3.1
7.5
EPSS
1%
Percentile
48.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00612 · 48.6th percentile
Weakness
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Published
2026-05-08T22:31Z
EPSS history
Timeline
  • 08 MAY 22:31Z
    pygeoapi: Path Traversal in STAC FileSystemProvider
    cvelistv5