Ground Station prior to 0.6.0 Unauthenticated Persistent Blind Server-Side Request Forgery via Orbital Data Source URL
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-918 and the CVSS impact.
Summary
Ground Station prior to 0.6.0 contains an unauthenticated blind server-side request forgery vulnerability in the orbital-source configuration path that allows any unauthenticated Socket.IO client to cause the ground-station process to issue outbound HTTP requests to attacker-chosen destinations. Attackers can connect to the Socket.IO server on port 7000 without credentials due to disabled authentication enforcement and a wildcard CORS policy, then submit a data_submission event with submit-orbital-sources action to persist an attacker-supplied URL in the database, then trigger an orbital sync via the equally unauthenticated background_task:start event. The URL is stored with no scheme allowlist, no host validation, and no rejection of loopback, RFC1918, or link-local (cloud instance metadata at 169.254.169.254) addresses, and is passed directly to requests.get in _fetch_http_3le and _fetch_http_omm in backend/tlesync/source_adapters.py. HTTP status codes and error messages from the outbound request are emitted in the orbital_sync_state Socket.IO event to all connected clients, providing a serviceable oracle for interpreting internal-service and cloud-metadata responses even though the raw response body is not directly leaked. Because the malicious source persists in the database across restarts and re-fires every 24 hours on the scheduled sync cycle, the primitive gives durable long-term SSRF without the attacker needing to remain connected.
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 |
|---|---|---|---|---|---|
| Efstratios Goudelis | Ground Station | before 0.6.0 | 0.6.0 | Patch available | CNA |
- Ground Station VendorEfstratios Goudelis Affected before 0.6.0 Fixed in 0.6.0 Patch available CNA
Remediation
- Fix · CNA Ground Station (Efstratios Goudelis) Fixed in 0.6.0
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
Efstratios Goudelis Ground Station — GitHub Security Advisory (GHSA-mjp8-x6h7-229q)
3 records Highest priority Priority MEDIUM 3 MEDIUM
Other records, highest priority first
- TI-2026-38942 Ground Station prior to 0.6.0 Unauthenticated DoS via service_control Socket.IOPriority MEDIUM 45
- TI-2026-38941 Missing authentication in Efstratios Goudelis Ground StationPriority MEDIUM 45
Timeline
- 2026-10-02 Threatist record created from CVE-2026-53983
- 2026-10-03 Alias added: GHSA-77cr-rrgg-p4wf
References
More Efstratios Goudelis vulnerabilities
- TI-2026-38942 Ground Station prior to 0.6.0 Unauthenticated DoS via service_control Socket.IO CVSS 4.0HIGH 8.7
- TI-2026-38941 Missing authentication in Efstratios Goudelis Ground Station CVSS 4.0HIGH 8.8
Sources
- CVE-2026-53983 · CVE Program
- CVE-2026-53983 · NVD
- FIRST EPSS
- GHSA-77cr-rrgg-p4wf · GitHub Advisory Database · CC BY 4.0
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