CVE Explorer
CVE-2026-45396
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.5, the POST /api/v1/evaluations/feedback endpoint in Open WebUI v0.9.2 is vulnerable to mass assignment via FeedbackForm, which uses model_config = ConfigDict(extra='allow'). Due to an insecure dictionary merge order in insert_new_feedback(), an authenticated attacker can inject a user_id field in the request body that overwrites the server-derived value, creating feedback records attr
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"open-webui","vendor":"open-webui","versions":[{"status":"affected","version":"< 0.9.5"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:438972b596c59a0eaa0d47cf8e27c9ea47c0973bb77256b8a8dd1d26291f5dc0 · sha256:0cc286a1bd847a6e… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":5.4,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:438972b596c59a0eaa0d47cf8e27c9ea47c0973bb77256b8a8dd1d26291f5dc0 · sha256:0cc286a1bd847a6e… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-915","description":"CWE-915: Improperly Controlled Modification of Dynamically-Determined Object Attributes","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:438972b596c59a0eaa0d47cf8e27c9ea47c0973bb77256b8a8dd1d26291f5dc0 · sha256:0cc286a1bd847a6e… · /containers/cna/problemTypes/0/descriptions/0
Source references
2 source assertions{"name":"https://github.com/open-webui/open-webui/security/advisories/GHSA-rjmp-vjf2-qf4g","tags":["x_refsource_CONFIRM"],"url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-rjmp-vjf2-qf4g"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:438972b596c59a0eaa0d47cf8e27c9ea47c0973bb77256b8a8dd1d26291f5dc0 · sha256:0cc286a1bd847a6e… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-rjmp-vjf2-qf4g"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:438972b596c59a0eaa0d47cf8e27c9ea47c0973bb77256b8a8dd1d26291f5dc0 · sha256:0cc286a1bd847a6e… · /containers/adp/0/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.