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CVE-2025-23214

Cosmos userbase checking vulnerability

MEDIUM
6.9
CVSS Score
Published: January 20, 2025 at 06:09 PM UTC
Updated: June 17, 2026 at 08:52 AM UTC
1 product affected across 1 vendorCosmos-Server

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Severity
MEDIUM6.9
Exploit prediction
EPSS 0.7%
SSVC
No known exploit

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. By monitoring the error code returned in the login, it is possible to figure out whether a user exist or not in the database. Patched in 0.17.7.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Cosmos-Server· Azukaar
60%
v < 0.17.7
Affected range stops below 0.17.7, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

x_refsource_MISC
Source: [email protected]
https://github.com/azukaar/Cosmos-Server/commit/ef643b4882b0ec074f4021d52583c7c00eac4691
x_refsource_CONFIRM
Source: [email protected]
https://github.com/azukaar/Cosmos-Server/security/advisories/GHSA-5843-2p4f-57fh

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.9MEDIUMGitHub_M
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-204

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