CVE-2026-54015

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-54015
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54015.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-54015
Aliases
Published
2026-06-23T16:44:57.526Z
Modified
2026-07-08T08:13:45.173067731Z
Severity
  • 6.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:L CVSS Calculator
Summary
Open WebUI: Prompt history IDOR: unbound history_id allows cross-prompt read and deletion
Details

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, Open WebUI's prompt version-history endpoints authorize the promptid in the URL but then act on caller-supplied history IDs without verifying that the history row belongs to that prompt (historyentry.promptid == prompt.id). This affects /api/v1/prompts/id/{promptid}/history/diff, /api/v1/prompts/id/{promptid}/update/version, and /api/v1/prompts/id/{promptid}/history/{historyid}. An authenticated user with access to any prompt they control, plus a victim prompthistory.id, can read or delete another user's private prompt history. This vulnerability is fixed in 0.9.6.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54015.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-284",
        "CWE-639"
    ]
}
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
1a97751e376e00a1897bc3679215ae1c7bd8fd42
Database specific 
{
    "cpe": "cpe:2.3:a:openwebui:open_webui:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.9.6"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "CPE_RANGE"
    ]
}

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54015.json"