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CVE-2026-48058

Published Jul 28, 2026 CWE-614

Overview

CVE-2026-48058 is a known-severity vulnerability. It was published on July 28, 2026.

Technical Description

nebula-mesh is a self-hosted control plane for Slack Nebula mesh virtual private network. Prior to version 0.3.2, internal/web/session.go and internal/web/oidc.go set HttpOnly and SameSite=Lax on every cookie but never Secure. A single plaintext request to the origin (operator on a LAN, mistyped URL, HTTP→HTTPS not strictly enforced, reverse proxy misconfiguration) discloses the session. This issue has been patched in version 0.3.2.

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

GitHub github.com/forgekeep/nebula-mesh/commit/ffdd67dbf221d9a5855c39fbe11b49c245048d85 GitHub github.com/forgekeep/nebula-mesh/releases/tag/v0.3.2 GitHub github.com/forgekeep/nebula-mesh/security/advisories/GHSA-rqfj-vv8r-xhqc GitHub github.com/forgekeep/nebula-mesh/security/advisories/GHSA-rqfj-vv8r-xhqc

Frequently Asked Questions

What is CVE-2026-48058?

CVE-2026-48058 is a known-severity vulnerability. It was published on July 28, 2026.

How severe is CVE-2026-48058?

CVSS score information is not yet available for this vulnerability. Check back as the CVE record is updated by NVD analysts.

How do I fix or remediate CVE-2026-48058?

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-2026-48058?

CyberStrike's AI-powered security agents can automatically detect CVE-2026-48058 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.

How CyberStrike Helps

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