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CVE-2026-49447

5.3 · MEDIUM

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.

Published Jul 28, 2026CWE-287EPSS 0.38%

Overview

CVE-2026-49447 is a medium-severity vulnerability. It was published on July 28, 2026 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/azukaar/Cosmos-Server/commit/59c561d686c8f9843b3e092b50f6346c481d8bbfGitHubgithub.com/azukaar/Cosmos-Server/releases/tag/v0.22.19GitHubgithub.com/azukaar/Cosmos-Server/security/advisories/GHSA-5fqm-cc34-fcf5GitHubgithub.com/azukaar/Cosmos-Server/security/advisories/GHSA-5fqm-cc34-fcf5

How CyberStrike helps

Frequently asked questions

What is CVE-2026-49447?

CVE-2026-49447 is a medium-severity vulnerability. It was published on July 28, 2026 and has a CVSS 3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2026-49447?

This vulnerability has a CVSS 3.1 base score of 5.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-49447?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-49447?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-49447 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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