CVE-2026-42351Network attack vector

Unauthenticated directory disclosure via unvalidated STAC paths

Published May 8, 2026 · Updated May 8, 2026

Path traversal in geopython pygeoapi 0.23.0 through 0.23.2 allows remote attackers to read directories through STAC collection requests. FileSystemProvider.get_data_path concatenates the configured data root with an unvalidated dirpath containing .. segments, so filesystem resolution escapes the intended root. Exploitation requires a configured stac-collection resource and direct deployment without a proxy or web front end that normalizes .. URL segments; disclosure is limited to directories readable by the service.

CVSS severity7.5
High
EPSS probability0.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in geopython pygeoapi 0.23.0 through 0.23.2 allows remote attackers to read directories through STAC collection requests. FileSystemProvider.get_data_path concatenates the configured data root with an unvalidated dirpath containing .. segments, so filesystem resolution escapes the intended root. Exploitation requires a configured stac-collection resource and direct deployment without a proxy or web front end that normalizes .. URL segments; disclosure is limited to directories readable by the service.

The record

CVE
CVE-2026-42351
Published
May 8, 2026
Updated
May 8, 2026
Vendor
geopython
Product
pygeoapi
Classifications
CWE-22, T1083
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 8, 2026CVE publishedPublication date reported by the CVE source.
  2. May 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 0.23.0, < 0.23.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

geopython · pygeoapiversion=>= 0.23.0, < 0.23.3

Published CVSS scores

7.5GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1083File and Directory Discovery

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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