Cosmos-Server's constellation public-devices endpoint accepts arbitrary bearer tokens

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-49447
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-28 21:17:28 UTC
Updated2026-07-30 20:02:12 UTC
DescriptionCosmos provides users the ability self-host a home server by acting as a secure gateway to your application, as well as a server manager. In 0.22.18, `GET /cosmos/api/constellation/public-devices` discloses Constellation device metadata to a requester that supplies any non-empty Authorization header. The handler strips the string Bearer from the header but never validates the resulting token and never uses it in the database query. This vulnerability is fixed in 0.22.19.

Risk And Classification

Primary CVSS: v3.1 5.3 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS: 0.002240000 probability, percentile 0.131890000 (date 2026-08-01)

Problem Types: CWE-287 | CWE-287 CWE-287: Improper Authentication

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
3.1CNADECLARED5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Azukaar Cosmos-Server affected 0.22.18 Not specified

References

ReferenceSourceLinkTags
github.com/azukaar/Cosmos-Server/security/advisories/GHSA-5fqm-cc34-fcf5 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
github.com/azukaar/Cosmos-Server/commit/59c561d686c8f9843b3e092b50f6346c... [email protected] github.com
github.com/azukaar/Cosmos-Server/releases/tag/v0.22.19 [email protected] github.com
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