CVE-2026-46341 | The Apify MCP server enables AI agents to extract data from … | CVSS 6.1 MEDIUM

Description

The Apify MCP server enables AI agents to extract data from websites using ready-made scrapers, crawlers, and automation tools available on the Apify Store. Prior to 0.9.21, the fetch-apify-docs tool in src/tools/common/fetch_apify_docs.ts validates allowlisted documentation domains with String.startsWith() rather than URL hostname comparison, allowing attacker-controlled URLs such as `https://docs.apify.com.evil.com/` and `https://docs.apify.com@evil.com/` to pass the ALLOWED_DOC_DOMAINS check and return arbitrary fetched content to the LLM. This issue is fixed in version 0.9.21.

Metadata

CVE ID: CVE-2026-46341
State: PUBLISHED
Assigner: GitHub_M
Reserved: 2026-05-13 18:37 UTC
Published: 2026-07-16 16:54 UTC
Last updated: 2026-07-16 16:54 UTC
Primary CWE: CWE-20
CWE-20: Improper Input Validation
Vendor / Product: apify / apify-mcp-server
Sources: cve.org · NVD

Severity & Metrics

6.1 MEDIUM CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected products (1)

Vendor	Product	Platform	Versions
apify	apify-mcp-server	—	< 0.9.21

Weakness (CWE)

CWE	Source	Description
CWE-183	cna	CWE-183: Permissive List of Allowed Inputs
CWE-20	cna	CWE-20: Improper Input Validation

CVSS scores (1)

Score	Severity	Version	Source	Vector
6.1	MEDIUM	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References (4)

https://github.com/apify/apify-mcp-server/security/advisories/GHSA-jwp7-wg77-3w9v https://github.com/apify/apify-mcp-server/security/advisories/GHSA-jwp7-wg77-3w9v
https://github.com/apify/apify-mcp-server/pull/781 https://github.com/apify/apify-mcp-server/pull/781
https://github.com/apify/apify-mcp-server/commit/e39bdee530da1db0b3b3d3713558b33c9608e629 https://github.com/apify/apify-mcp-server/commit/e39bdee530da1db0b3b3d3713558b33c9608e629
https://github.com/apify/apify-mcp-server/releases/tag/v0.9.21 https://github.com/apify/apify-mcp-server/releases/tag/v0.9.21