Neotoma: Unauthenticated Inspector/API access via reverse-proxy loopback auth bypass
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-288.
Summary
Neotoma provides versioned records that persist across agent runs. From 0.6.0 to before 0.11.1, Neotoma can treat public reverse-proxied requests as local when the app receives them over a loopback socket and no Bearer token is present. In affected deployments, the REST auth middleware can resolve unauthenticated requests as the local development user, making the hosted Inspector and related API surface reachable without credentials. This vulnerability is fixed in 0.11.1.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| markmhendrickson | neotoma | 0.6.0 to before 0.11.1 | 0.11.1 | Patch available | CNA |
| — | neotoma (npm) | 0.6.0 to before 0.11.1 | 0.11.1 | Patch available | GHSA-5cvp-p7p4-mcx9 |
- neotoma Vendormarkmhendrickson Affected 0.6.0 to before 0.11.1 Fixed in 0.11.1 Patch available CNA
- neotoma (npm) Vendor— Affected 0.6.0 to before 0.11.1 Fixed in 0.11.1 Patch available GHSA-5cvp-p7p4-mcx9
Remediation
- Fix · CNA neotoma (markmhendrickson) Fixed in 0.11.1
- Fix · GHSA-5cvp-p7p4-mcx9 neotoma (npm) Fixed in 0.11.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-45577
- 2026-10-03 Alias added: GHSA-5cvp-p7p4-mcx9
References
Sources
- CVE-2026-45577 · CVE Program
- CVE-2026-45577 · NVD
- FIRST EPSS
- GHSA-5cvp-p7p4-mcx9 · GitHub Advisory Database · CC BY 4.0
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