Information Disclosure in glances (CVE-2026-30928)
Summary
Vulnerability in glances (CVE-2026-30928). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to 4.5.1 or later.
Original description
The description as published by the source.
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 fil…
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-30928 has been found in glances.
Risk of unauthorized operations or information disclosure.
What to do: upgrade glances to 4.5.1 or later.
If unsure, ask your IT team or search "glances CVE-2026-30928" on the vendor's site.
CVE-2026-30928 (glances) — CWE-200
Patched: 4.5.1 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
Information disclosure (CWE-200) exists in glances.
Check the vendor advisory for the affected versions of glances.
Severity: ?. Risk of unauthorized operations or information disclosure.
Update to 4.5.1.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'glances' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'glances' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
glancesを grep し、稼働しているサービス・バージョンを把握する。 -
2Apply patch patch
Upgrade glances to 4.5.1ステージング環境で 4.5.1 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
-
3Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2026-30928 glances
- Ubuntu UBUNTU-CVE-2026-30928 glances
References
- advisory nvd.nist.gov
- package github.com
- web github.com
- web github.com
- web github.com