CVE Explorer
CVE-2026-44558
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the channel router does not call filter_allowed_access_grants on either create or update paths. A non-admin user who can create group channels (or who owns a channel) can submit arbitrary access grants — including public wildcard grants — and those grants are stored verbatim, bypassing the admin's permission framework. This vulnerability is fixed in 0.9.0.
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":"< 0.9.0"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:ea886e65af3edbc8e3cbd80e4c54262024a8a117067e61afc6a956a109d518a3 · sha256:822139b9de763007… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.4,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:ea886e65af3edbc8e3cbd80e4c54262024a8a117067e61afc6a956a109d518a3 · sha256:822139b9de763007… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-862","description":"CWE-862: Missing Authorization","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:ea886e65af3edbc8e3cbd80e4c54262024a8a117067e61afc6a956a109d518a3 · sha256:822139b9de763007… · /containers/cna/problemTypes/0/descriptions/0
Source references
2 source assertions{"tags":["exploit"],"url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-7rjh-px4v-5w55"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:ea886e65af3edbc8e3cbd80e4c54262024a8a117067e61afc6a956a109d518a3 · sha256:822139b9de763007… · /containers/adp/0/references/0
{"name":"https://github.com/open-webui/open-webui/security/advisories/GHSA-7rjh-px4v-5w55","tags":["x_refsource_CONFIRM"],"url":"https://github.com/open-webui/open-webui/security/advisories/GHSA-7rjh-px4v-5w55"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:ea886e65af3edbc8e3cbd80e4c54262024a8a117067e61afc6a956a109d518a3 · sha256:822139b9de763007… · /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.