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CVE-2026-54010

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, Open WebUI lets an authenticated user attach arbitrary file_id values to their own chat message without checking whether they own or can read those files. If the attacker then shares that chat and grants themselves read access, has_access_to_file() treats the victim file as accessible through the shared chat, and the file endpoints read or delete the victim file. This vulnerability
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:36fa1cb90d4c4c0e5b18f3f8b6bce14950b56741a936527ef4692b621f7aa6c2
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 3 assertions

{"cweId":"CWE-639","description":"CWE-639: Authorization Bypass Through User-Controlled Key","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b36b20ffc4c6ae5ed83a3bb5a499ec3a193786fd9db059236bb9ac963bcf8589 · sha256:2000b2d178605037… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-284","description":"CWE-284: Improper Access Control","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b36b20ffc4c6ae5ed83a3bb5a499ec3a193786fd9db059236bb9ac963bcf8589 · sha256:2000b2d178605037… · /containers/cna/problemTypes/0/descriptions/0

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

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b36b20ffc4c6ae5ed83a3bb5a499ec3a193786fd9db059236bb9ac963bcf8589 · sha256:2000b2d178605037… · /containers/cna/problemTypes/2/descriptions/0

Affected products and versions

1 source assertion
{"product":"open-webui","vendor":"open-webui","versions":[{"status":"affected","version":"< 0.9.6"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b36b20ffc4c6ae5ed83a3bb5a499ec3a193786fd9db059236bb9ac963bcf8589 · sha256:2000b2d178605037… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":8.3,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b36b20ffc4c6ae5ed83a3bb5a499ec3a193786fd9db059236bb9ac963bcf8589 · sha256:2000b2d178605037… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

3 source assertions
{"cweId":"CWE-639","description":"CWE-639: Authorization Bypass Through User-Controlled Key","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b36b20ffc4c6ae5ed83a3bb5a499ec3a193786fd9db059236bb9ac963bcf8589 · sha256:2000b2d178605037… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-284","description":"CWE-284: Improper Access Control","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b36b20ffc4c6ae5ed83a3bb5a499ec3a193786fd9db059236bb9ac963bcf8589 · sha256:2000b2d178605037… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-862","description":"CWE-862: Missing Authorization","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b36b20ffc4c6ae5ed83a3bb5a499ec3a193786fd9db059236bb9ac963bcf8589 · sha256:2000b2d178605037… · /containers/cna/problemTypes/2/descriptions/0

Source references

2 source assertions
{"tags":["exploit"],"url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-vrhc-3fr6-pc3c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b36b20ffc4c6ae5ed83a3bb5a499ec3a193786fd9db059236bb9ac963bcf8589 · sha256:2000b2d178605037… · /containers/adp/0/references/0
{"name":"https://github.com/open-webui/open-webui/security/advisories/GHSA-vrhc-3fr6-pc3c","tags":["x_refsource_CONFIRM"],"url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-vrhc-3fr6-pc3c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b36b20ffc4c6ae5ed83a3bb5a499ec3a193786fd9db059236bb9ac963bcf8589 · sha256:2000b2d178605037… · /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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