fast-mcp-telegram: Bearer token path traversal bypasses reserved Telegram session protection

Date Jul 2, 2026

Type Vendor advisory

Signal High-risk advisory

Vendor / Product PyPI · fast-mcp-telegram

CVE CVE-2026-52830

High-risk advisory CVE-2026-52830

Summary

fast-mcp-telegram: Bearer token path traversal bypasses reserved Telegram session protection

Why it matters

GitHub has published a reviewed security advisory for fast-mcp-telegram. Prioritize it with other application dependency updates.

Operator check

Check whether fast-mcp-telegram is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available.

Sources

GitHub Advisory GHSA-rxw2-pc8j-vxwm NVD — CVE-2026-52830 Source reference

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.

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