Vulnerability-Lookup

CVE-2026-42351 (GCVE-0-2026-42351)

Vulnerability from cvelistv5 – Published: 2026-05-08 22:31 – Updated: 2026-05-12 02:13

Title

pygeoapi: Path Traversal in STAC FileSystemProvider

Summary

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.

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-12 02:13 UTC

CWE

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

Assigner

GitHub_M

References

3 references

URL	Tags
https://github.com/geopython/pygeoapi/security/ad…	x_refsource_CONFIRM
https://github.com/geopython/pygeoapi/commit/bf25…	x_refsource_MISC
https://github.com/geopython/pygeoapi/releases/ta…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
geopython	pygeoapi	Affected: >= 0.23.0, < 0.23.3

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-42351

Vulnerability from fkie_nvd - Published: 2026-05-08 23:16 - Updated: 2026-06-17 10:47

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/geopython/pygeoapi/commit/bf25b8695edbdd5476eeffc102b633d1d3e45f52
	security-advisories@github.com	https://github.com/geopython/pygeoapi/releases/tag/0.23.3
	security-advisories@github.com	https://github.com/geopython/pygeoapi/security/advisories/GHSA-f6pr-83pg-ghh6

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "pygeoapi",
          "vendor": "geopython",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 0.23.0, \u003c 0.23.3"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
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    {
      "lang": "en",
      "value": "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\u0027s 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."
    }
  ],
  "id": "CVE-2026-42351",
  "lastModified": "2026-06-17T10:47:43.687",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
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          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
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        "impactScore": 3.6,
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        "type": "Secondary"
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}

GHSA-F6PR-83PG-GHH6

Vulnerability from github – Published: 2026-04-29 22:18 – Updated: 2026-05-13 13:38

Summary

pygeoapi 0.23.x: Path Traversal in STAC FileSystemProvider

Details

Impact

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.

Patches

The issue has been patched in master branch and made available as part of the 0.23.3 release.

The commit/fix can be found in bf25b8695edbdd5476eeffc102b633d1d3e45f52.

Workarounds

Users can safeguard existing applications by disabling STAC collection based resources in their pygeoapi config, until 0.23.3 can be installed and deployed.

Severity

7.5 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "pygeoapi"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.23.0"
            },
            {
              "fixed": "0.23.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-42351"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-04-29T22:18:02Z",
    "nvd_published_at": "2026-05-08T23:16:38Z",
    "severity": "HIGH"
  },
  "details": "### Impact\nA raw string path concatenation vulnerability in pygeoapi\u0027s 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.\n\n### Patches\nThe issue has been patched in master branch and made available as part of the 0.23.3 release.\n\nThe commit/fix can be found in [bf25b8695edbdd5476eeffc102b633d1d3e45f52](https://github.com/geopython/pygeoapi/commit/bf25b8695edbdd5476eeffc102b633d1d3e45f52).\n### Workarounds\nUsers can safeguard existing applications by disabling STAC collection based resources in their pygeoapi config, until 0.23.3 can be installed and deployed.",
  "id": "GHSA-f6pr-83pg-ghh6",
  "modified": "2026-05-13T13:38:11Z",
  "published": "2026-04-29T22:18:02Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/geopython/pygeoapi/security/advisories/GHSA-f6pr-83pg-ghh6"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42351"
    },
    {
      "type": "WEB",
      "url": "https://github.com/geopython/pygeoapi/commit/bf25b8695edbdd5476eeffc102b633d1d3e45f52"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/geopython/pygeoapi"
    },
    {
      "type": "WEB",
      "url": "https://github.com/geopython/pygeoapi/releases/tag/0.23.3"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "pygeoapi 0.23.x: Path Traversal in STAC FileSystemProvider"
}

PYSEC-2026-2985

Vulnerability from pysec - Published: 2026-07-13 15:02 - Updated: 2026-07-13 16:05

Details

Impact

Patches

The issue has been patched in master branch and made available as part of the 0.23.3 release.

The commit/fix can be found in bf25b8695edbdd5476eeffc102b633d1d3e45f52.

Workarounds

Users can safeguard existing applications by disabling STAC collection based resources in their pygeoapi config, until 0.23.3 can be installed and deployed.

Severity

7.5 (High)


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

Impacted products

Name	purl
pygeoapi	pkg:pypi/pygeoapi

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "pygeoapi",
        "purl": "pkg:pypi/pygeoapi"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.23.0"
            },
            {
              "fixed": "0.23.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.23.0",
        "0.23.1",
        "0.23.2"
      ]
    }
  ],
  "aliases": [
    "CVE-2026-42351",
    "GHSA-f6pr-83pg-ghh6"
  ],
  "details": "### Impact\nA raw string path concatenation vulnerability in pygeoapi\u0027s 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.\n\n### Patches\nThe issue has been patched in master branch and made available as part of the 0.23.3 release.\n\nThe commit/fix can be found in [bf25b8695edbdd5476eeffc102b633d1d3e45f52](https://github.com/geopython/pygeoapi/commit/bf25b8695edbdd5476eeffc102b633d1d3e45f52).\n### Workarounds\nUsers can safeguard existing applications by disabling STAC collection based resources in their pygeoapi config, until 0.23.3 can be installed and deployed.",
  "id": "PYSEC-2026-2985",
  "modified": "2026-07-13T16:05:52.234376Z",
  "published": "2026-07-13T15:02:55.307233Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/geopython/pygeoapi/security/advisories/GHSA-f6pr-83pg-ghh6"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42351"
    },
    {
      "type": "WEB",
      "url": "https://github.com/geopython/pygeoapi/commit/bf25b8695edbdd5476eeffc102b633d1d3e45f52"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/geopython/pygeoapi"
    },
    {
      "type": "WEB",
      "url": "https://github.com/geopython/pygeoapi/releases/tag/0.23.3"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/pygeoapi"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-f6pr-83pg-ghh6"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "pygeoapi 0.23.x: Path Traversal in STAC FileSystemProvider"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

CVE-2026-42351 (GCVE-0-2026-42351)

FKIE_CVE-2026-42351

GHSA-F6PR-83PG-GHH6

Impact

Patches

Workarounds

PYSEC-2026-2985

Impact

Patches

Workarounds

Tags

Sightings

Nomenclature