Is CVE-2026-58446 actively exploited?

No active exploitation of CVE-2026-58446 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-58446 be exploited remotely?

Yes. CVE-2026-58446 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-58446?

CVE-2026-58446 has a CVSS score of 6.5 (MEDIUM).

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MEDIUM

CVE-2026-58446

CWE-306Published: June 30, 2026· Updated: Jul 2, 2026

6.5

CVSS v3.1

Official Description

Presenton before 0.8.8-beta bundles an MCP server that, on server/Docker deployments configured with session authentication (AUTH_USERNAME/AUTH_PASSWORD), is reachable unauthenticated at /mcp because the nginx front-end does not apply the auth_request gate to that path and the MCP server auto-mints a valid internal session token for the configured user. A remote unauthenticated attacker can invoke MCP tools such as generate_presentation, performing authenticated application actions, consuming the operators configured LLM API keys, and creating presentations in the operators instance. The Electron desktop build is not affected (MCP disabled).

NVD Source

Technical Analysis

CVE-2026-58446 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.