Auth bypass in Ccfos Nightingale
CVE-2026-58167
Nightingale (n9e) before 9.0.0-beta.2 exposes full datasource configurations, including plaintext database passwords, HTTP bearer tokens, HTTP basic-auth passwords, and mTLS client keys, to any authenticated low-privilege (Standard role) user through POST /api/n9e/datasource/list. The route is registered without an admin authorization gate, unlike the sibling datasource mutation routes, and the open-source DatasourceFilter does not redact secret fields, so the secret-bearing settings, http, and auth objects are serialized in the response. The disclosed credentials enable access to the connected downstream systems.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (33.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 33.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Ccfos Nightingale — versions 0
Weakness classification (CWE)
References
- github.com/ccfos/nightingale/releases/tag/v9.0.0-beta.2 (release-notes)
- github.com/ccfos/nightingale/issues/3173 (technical-description)
- github.com/ccfos/nightingale/pull/3175 (issue-tracking)
- github.com/ccfos/nightingale/commit/762819fbaa2350b73bce45bfaf6f8cf74b4abef8 (patch)
- www.vulncheck.com/advisories/nightingale-beta-2-datasource-credential-disclosur… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-58167?
- CVE-2026-58167 is a medium-severity vulnerability in Ccfos Nightingale, classified under Missing Authorization. CVSS score: 6.5/10. Published 2026-06-30.
- How severe is CVE-2026-58167?
- Medium severity. CVSS v3 base score is 6.5 out of 10.