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CVE-2026-42351

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 c
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:c1361fe96deeb0ea02145c6816ce00060f2906e185429d480f7429e56d11271e
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"pygeoapi","vendor":"geopython","versions":[{"status":"affected","version":">= 0.23.0, < 0.23.3"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:154ad68c1b47491cdb328ae50e74d2bba4c44d853855fae74598e0cbe0a0dde0 · sha256:1811936214823dfd… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:154ad68c1b47491cdb328ae50e74d2bba4c44d853855fae74598e0cbe0a0dde0 · sha256:1811936214823dfd… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-22","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:154ad68c1b47491cdb328ae50e74d2bba4c44d853855fae74598e0cbe0a0dde0 · sha256:1811936214823dfd… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/geopython/pygeoapi/commit/bf25b8695edbdd5476eeffc102b633d1d3e45f52","tags":["x_refsource_MISC"],"url":"https://github.com/geopython/pygeoapi/commit/bf25b8695edbdd5476eeffc102b633d1d3e45f52"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:154ad68c1b47491cdb328ae50e74d2bba4c44d853855fae74598e0cbe0a0dde0 · sha256:1811936214823dfd… · /containers/cna/references/1
{"name":"https://github.com/geopython/pygeoapi/releases/tag/0.23.3","tags":["x_refsource_MISC"],"url":"https://github.com/geopython/pygeoapi/releases/tag/0.23.3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:154ad68c1b47491cdb328ae50e74d2bba4c44d853855fae74598e0cbe0a0dde0 · sha256:1811936214823dfd… · /containers/cna/references/2
{"name":"https://github.com/geopython/pygeoapi/security/advisories/GHSA-f6pr-83pg-ghh6","tags":["x_refsource_CONFIRM"],"url":"https://github.com/geopython/pygeoapi/security/advisories/GHSA-f6pr-83pg-ghh6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:154ad68c1b47491cdb328ae50e74d2bba4c44d853855fae74598e0cbe0a0dde0 · sha256:1811936214823dfd… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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