Nightingale exposes datasource credentials to low-privilege users

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS 4.0

7.1 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N · score source

EPSS

• CVE-2026-58167: 0.41% estimated exploitation activity in the next 30 days; percentile 35.86 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

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.

Published by the source

7 Oct 2026, 14:10 UTC

Last modified by the source

7 Oct 2026, 17:45 UTC

Source last checked

26 Oct 2026, 15:29 UTC

1. Revision 3 · amended · 26 Oct 2026

   Amended from ghsa record GHSA-27c6-wp53-387x

2. Revision 2 · amended · 25 Oct 2026

   Reviewed OSV alias/range/CVSS4 correction; package source scopes and original publication preserved. No customer finding resolved.

3. Revision 1 · created · 24 Oct 2026

   Published from osv record GO-2026-6638

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# Patch Next advisory brief: CVE-2026-58167

Advisory: Nightingale exposes datasource credentials to low-privilege users
IDs: CVE-2026-58167, GHSA-27c6-wp53-387x
Record: https://patchnext.com/advisories/cve-2026-58167 (revision 3, source checked 26 Oct 2026, 15:29 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 7.1)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Partial vendor fix; fixed versions by package: github.com/ccfos/nightingale/v6 6.7.3-0.20260528033214-762819fbaa23. A vendor fix does not mean a deployment is fixed.

## Affected components
- Go github.com/ccfos/nightingale/v6: affected < 6.7.3-0.20260528033214-762819fbaa23; fixed in 6.7.3-0.20260528033214-762819fbaa23
- Go github.com/ccfos/nightingale/v4: affected every version
- Go github.com/ccfos/nightingale: affected every version
- Go github.com/ccfos/nightingale/v5: affected every version

## Suggested inspection (read-only)
- Go github.com/ccfos/nightingale/v6: check the installed version with your package manager.
- Go github.com/ccfos/nightingale/v4: check the installed version with your package manager.
- Go github.com/ccfos/nightingale: check the installed version with your package manager.
- Go github.com/ccfos/nightingale/v5: check the installed version with your package manager.

## Supported action
No complete vendor fix is recorded. Follow the primary source's mitigation guidance and check this record again before closing anything.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on github.com/ccfos/nightingale/v6, github.com/ccfos/nightingale/v4, github.com/ccfos/nightingale, github.com/ccfos/nightingale/v5.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GO-2026-6638 (OSV record GO-2026-6638 lists affected ranges: Go github.com/ccfos/nightingale >=0; Go github.com/ccfos/nightingale/v4 >=0; Go github.com/ccfos/nightingale/v5 >=0; Go github.com/ccfos/nightingale/v6 >=0 <6.7.3-0.20260528033214-762819fbaa23 (fixed))
- Verified: https://github.com/advisories/GHSA-27c6-wp53-387x (GitHub-reviewed advisory GHSA-27c6-wp53-387x lists affected ranges: Go github.com/ccfos/nightingale/v6 >=0 <6.7.3-0.20260528033214-762819fbaa23)

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