CVE-2026-49447CWE-287

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

Medium · published July 28, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
31.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00384 · 31.3th percentile
Weakness
CWE-287 · Improper Authentication
Published
2026-07-28T20:35Z
EPSS history
Timeline
  • 28 JUL 20:35Z
    Cosmos-Server's constellation public-devices endpoint accepts arbitrary bearer tokens
    cvelistv5