CVE-2026-49446
NVD: Cosmos provides users the ability self-host a home server by acting as a secure gateway to your application, as well as a server manager. NVD: Prior to 0.22.19, tokenMiddleware in src/proxy/routerGen.go can return through the Constellation tunnel bypass before removing x-cosmos-user, x-cosmos-role, x-cosmos-user-role, and x-cosmos-mfa headers and before invoking AdminOnlyWithRedirect. NVD: An attacker with a valid x-cstln-auth API key for an enrolled device who reaches Cosmos through the Constellation Nebula tunnel can supply a chosen x-cosmos-user value to a route with AuthEnabled enabled when the upstream application trusts that forward-auth...
6.1 Severity
MEDIUM EPSS
0.0029 (21) KEV
-
Source-published summary
NVD: Cosmos provides users the ability self-host a home server by acting as a secure gateway to your application, as well as a server manager. NVD: Prior to 0.22.19, tokenMiddleware in src/proxy/routerGen.go can return through the Constellation tunnel bypass before removing x-cosmos-user, x-cosmos-role, x-cosmos-user-role, and x-cosmos-mfa headers and before invoking AdminOnlyWithRedirect. NVD: An attacker with a valid x-cstln-auth API key for an enrolled device who reaches Cosmos through the Constellation Nebula tunnel can supply a chosen x-cosmos-user value to a route with AuthEnabled enabled when the upstream application trusts that forward-auth...
Possible impact
Source describes authentication boundary review. Possible impact: This medium severity issue needs human triage to confirm exposure, affected versions, and vendor guidance for authentication boundary review.
Affected context
Affected product or version requires source confirmation.
Remediation / advisory
Patch confirmed by source text; fixed version context: 0.22.19..
Why it matters
Source describes authentication boundary review. Possible impact: This medium severity issue needs human triage to confirm exposure, affected versions, and vendor guidance for authentication boundary review.; CVSS 6.1 (MEDIUM); EPSS percentile 21; not listed in KEV; Patch confirmed by source text; fixed version context: 0.22.19; sources: NVD, OSV.
What to verify
Confirm affected product/version, vendor advisory, patch or mitigation, and exposure.
Exposure hint
exposure unknown
Impact tags
Urgency reasons
Source-derived note
Summary derived from NVD / OSV description; unsafe procedural detail is not shown.
Redaction metadata
- source summary used
- True
- fallback summary used
- False
- unsafe procedural detail present
- false
- raw source displayed
- false
- public summary redacted
- true
Remediation handoff
Public-safe static handoff for human/Codex remediation planning. Scan, patch, external execution, and auto remediation are disabled.
Safety note
This radar shows source-published defensive context only. Exploit procedures, exploit strings, scanner commands, and auto-remediation are not provided.