Is there a public exploit for CVE-2026-61546?

No public exploit for CVE-2026-61546 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-61546?

CVE-2026-61546 scores CVSS 8.8 (v4.0), rated high.

8.8 High

AnkiMCP is an Anki addon that implements an MCP server, enabling AI assistants to interact with the Anki flashcard application.

CVE-2026-61546

AnkiMCP is an Anki addon that implements an MCP server, enabling AI assistants to interact with the Anki flashcard application. Prior to version 0.21.0, ankimcpserver/mcpserver.py globally disables FastMCP DNS-rebinding protection through TransportSecuritySettings with enablednsrebindingprotection=False, including for the default local Streamable HTTP listener. The defaults in ankimcpserver/config.py enable httpenabled on 127.0.0.1:3141, with an empty httppath selecting the root endpoint. No bearer token, API key, session secret, strict Host allowlist or strict Origin allowlist is enforced before initialize, tools/list and tools/call reach MCP dispatch. A victim who visits a malicious web page while Anki and the listener are running can have browser requests rebound to loopback, allowing the attacker to initialize MCP, enumerate tools, read the local collection, and perform enabled non-destructive note/deck creation or updates. The attacker needs neither LAN position nor a local process. Available operations depend on enabled tool filters; destructive tools are hidden unless enableddestructivetools is opted into, limiting deletion-level impact but not the exposed read/write…

Part of the AI stack

This affects Model Context Protocol, in MCP & tool servers.

Assessment

CVSS: 8.8 (v4.0)
Severity: High
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 28 October 2026
Last updated: 29 October 2026
Weakness: CWE-346, CWE-350
Assigner: security-advisories@github.com

CVSS vectorCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

At the source

References

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curl https://cve.zerocrew.in/api/cve/CVE-2026-61546