CVE-2026-28786

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Source
https://cve.org/CVERecord?id=CVE-2026-28786
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-28786.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-28786
Aliases
Published
2026-03-26T23:37:25.673Z
Modified
2026-04-02T13:22:22.201496Z
Severity
  • 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
Summary
Open WebUI vulnerable to Path Traversal in `POST /api/v1/audio/transcriptions`
Details

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.8.6, an unsanitized filename field in the speech-to-text transcription endpoint allows any authenticated non-admin user to trigger a FileNotFoundError whose message — including the server's absolute DATA_DIR path — is returned verbatim in the HTTP 400 response body, confirming information disclosure on all default deployments. Version 0.8.6 patches the issue.

Database specific 
{
    "cwe_ids": [
        "CWE-209",
        "CWE-22"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/28xxx/CVE-2026-28786.json",
    "cna_assigner": "GitHub_M"
}
References

Affected packages

Git / github.com/open-webui/open-webui

Affected ranges

Type
GIT
Repo
https://github.com/open-webui/open-webui
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
9c9a18d6d4311ff246d5d1345d94581bf25c604b
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.8.6"
        }
    ]
}

Affected versions

v0.*
v0.1.102
v0.1.103
v0.1.104
v0.1.105
v0.1.106
v0.1.107
v0.1.108
v0.1.109
v0.1.110
v0.1.111
v0.1.112
v0.1.113
v0.1.114
v0.1.115
v0.1.116
v0.1.117
v0.1.118
v0.1.119
v0.1.120
v0.1.121
v0.1.122
v0.1.123
v0.1.124
v0.1.125
v0.2.0
v0.2.1
v0.2.2
v0.2.3
v0.2.4
v0.2.5
v0.3.0
v0.3.1
v0.3.10
v0.3.11
v0.3.12
v0.3.13
v0.3.14
v0.3.15
v0.3.16
v0.3.17
v0.3.18
v0.3.19
v0.3.2
v0.3.20
v0.3.21
v0.3.22
v0.3.23
v0.3.24
v0.3.25
v0.3.26
v0.3.27
v0.3.28
v0.3.29
v0.3.3
v0.3.30
v0.3.31
v0.3.32
v0.3.33
v0.3.34
v0.3.35
v0.3.4
v0.3.5
v0.3.6
v0.3.7
v0.3.8
v0.3.9
v0.4.0
v0.4.1
v0.4.2
v0.4.3
v0.4.4
v0.4.5
v0.4.6
v0.4.7
v0.4.8
v0.5.0
v0.5.1
v0.5.10
v0.5.11
v0.5.12
v0.5.13
v0.5.14
v0.5.15
v0.5.16
v0.5.17
v0.5.18
v0.5.19
v0.5.2
v0.5.20
v0.5.3
v0.5.4
v0.5.5
v0.5.6
v0.5.7
v0.5.8
v0.5.9
v0.6.0
v0.6.1
v0.6.10
v0.6.11
v0.6.12
v0.6.13
v0.6.14
v0.6.15
v0.6.16
v0.6.17
v0.6.18
v0.6.19
v0.6.2
v0.6.20
v0.6.21
v0.6.22
v0.6.23
v0.6.24
v0.6.25
v0.6.26
v0.6.27
v0.6.28
v0.6.29
v0.6.3
v0.6.30
v0.6.31
v0.6.32
v0.6.33
v0.6.34
v0.6.35
v0.6.36
v0.6.37
v0.6.38
v0.6.39
v0.6.4
v0.6.40
v0.6.41
v0.6.42
v0.6.43
v0.6.5
v0.6.6
v0.6.7
v0.6.8
v0.6.9
v0.7.0
v0.7.1
v0.7.2
v0.8.0
v0.8.1
v0.8.2
v0.8.3
v0.8.4
v0.8.5

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-28786.json"