CVE-2026-46555: WhatsApp MCP Server is a Model Context Protocol (MCP) server for WhatsApp, enabling Claude to read and send Wh

Q: How do I fix CVE-2026-46555?

whatsapp mcp server: upgrade to 0.2.1. Exact commands for each OS are on this page.

Q: Is CVE-2026-46555 being exploited?

CVE-2026-46555 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-46555 affect?

CVE-2026-46555 affects whatsapp mcp server. Severity is high (CVSS 7.7). WhatsApp MCP Server is a Model Context Protocol (MCP) server for WhatsApp, enabling Claude to read and send WhatsApp messages. Prior to version 0.2.1, the `whatsapp-bridge` HTTP API listens on `127.0.0.1:8080` without authentication and wit

Routine

HIGH 7.7UPGRADE

CVE-2026-46555 is a high-severity flaw (CVSS 7.7) affecting whatsapp mcp server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

WhatsApp MCP Server is a Model Context Protocol (MCP) server for WhatsApp, enabling Claude to read and send WhatsApp messages. Prior to version 0.2.1, the `whatsapp-bridge` HTTP API listens on `127.0.0.1:8080` without authentication and without Host header validation, and the `/api/send` endpoint accepts an absolute `media_path` parameter without confining it to a safe directory. Combined, these issues allow any local process running as the same

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.7 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.2% (top 90%)
CISA exploited list	No
Weakness	CWE-22, CWE-306, CWE-346
Published	2026-07-20
Last modified	2026-10-24

Publisher (CNA): GitHub, Inc. · Vendor: verygoodplugins

Last updated 2026-10-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-07-20 17:17 UTCPublished CVE record published
2026-10-24 20:10 UTCUpdated Record last modified

verygoodplugins whatsapp mcp server UPGRADE

Affected: < 0.2.1

Fixed in: 0.2.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy whatsapp-mcp-server || rpm -q whatsapp-mcp-server || whatsapp-mcp-server --version

2. UPGRADE to 0.2.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade whatsapp-mcp-server

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade whatsapp-mcp-server

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-46555?

whatsapp mcp server: upgrade to 0.2.1. Exact commands for each OS are on this page.

Is CVE-2026-46555 being exploited?

CVE-2026-46555 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-46555 affect?

CVE-2026-46555 affects whatsapp mcp server. Severity is high (CVSS 7.7). WhatsApp MCP Server is a Model Context Protocol (MCP) server for WhatsApp, enabling Claude to read and send WhatsApp messages. Prior to version 0.2.1, the `whatsapp-bridge` HTTP API listens on `127.0.0.1:8080` without authentication and wit

How urgent is CVE-2026-46555?

Priority 30/100. High severity

Software pages

WhatsApp vulnerabilities

References

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