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CVE-2026-44562

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the POST /api/v1/models/import endpoint allows users with the workspace.models_import permission to overwrite any existing model in the database, regardless of ownership. When an imported model's ID matches an existing model, the endpoint merges the attacker's payload over the existing model data and writes it to the database with no ownership or access grant validation. Additionall
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:a20f6701710cb36e187cebbe93fb2f75429c1f1b04f65933cdbe8e469d01d8cc
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-862","description":"CWE-862: Missing Authorization","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:736db2e6e5b934502579e699170e5512ebb7da7a8dff515c42b39ece03430a35 · sha256:ce07c40bf843181d… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-283","description":"CWE-283: Unverified Ownership","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:736db2e6e5b934502579e699170e5512ebb7da7a8dff515c42b39ece03430a35 · sha256:ce07c40bf843181d… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"product":"open-webui","vendor":"open-webui","versions":[{"status":"affected","version":"< 0.9.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:736db2e6e5b934502579e699170e5512ebb7da7a8dff515c42b39ece03430a35 · sha256:ce07c40bf843181d… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:736db2e6e5b934502579e699170e5512ebb7da7a8dff515c42b39ece03430a35 · sha256:ce07c40bf843181d… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-862","description":"CWE-862: Missing Authorization","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:736db2e6e5b934502579e699170e5512ebb7da7a8dff515c42b39ece03430a35 · sha256:ce07c40bf843181d… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-283","description":"CWE-283: Unverified Ownership","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:736db2e6e5b934502579e699170e5512ebb7da7a8dff515c42b39ece03430a35 · sha256:ce07c40bf843181d… · /containers/cna/problemTypes/1/descriptions/0

Source references

1 source assertion
{"name":"https://github.com/open-webui/open-webui/security/advisories/GHSA-mqq6-cqcx-38vg","tags":["x_refsource_CONFIRM"],"url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-mqq6-cqcx-38vg"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:736db2e6e5b934502579e699170e5512ebb7da7a8dff515c42b39ece03430a35 · sha256:ce07c40bf843181d… · /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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