Vulnerability · Published Jul 28, 2026 · Assigned by GitHub_M
CVE-2026-49447Cosmos-Server's constellation public-devices endpoint accepts arbitrary bearer tokens
Medium 5.3
In plain English
A medium-severity improper authentication in Cosmos-Server from azukaar. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 33% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
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. 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/azukaar/cosmos-server | 0.22.19 | GHSA-5fqm-cc34-fcf5 |
| Go | github.com/azukaar/cosmos-server | 0.22.19 | GO-2026-6124 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| azukaar | Cosmos-Server | 0.22.18 |
Weakness: CWE-287 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N