CVE-2026-50143
- Source
- https://cve.org/CVERecord?id=CVE-2026-50143
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-50143.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-50143
- Aliases
- Published
- 2026-08-18T17:51:18.888Z
- Modified
- 2026-08-20T03:54:24.376803903Z
- Severity
-
- 8.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N CVSS Calculator
- Summary
- Actor MCP path authority injection leaks Apify token
- Details
-
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 0.10.11, getActorMCPServerURL in src/mcp/actors.ts concatenates the trusted Actor standby URL with the attacker-controlled webServerMcpPath from an Actor definition without verifying the resulting origin, allowing a malicious Actor publisher to use a userinfo-style authority value to redirect connectMCPClient to a third-party host. The call-actor, fetch-actor-details, and actor-mcp tool-loading paths pass this URL to transports in src/mcp/client.ts that attach the victim Authorization bearer token, exposing the Apify API token and enabling access to Actors, stored data, and billable compute. A victim must invoke or inspect the attacker-controlled Actor. This issue is fixed in version 0.10.11.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-918" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50143.json" }- References
-
- https://github.com/apify/apify-mcp-server/releases/tag/v0.10.11
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50143.json
- https://github.com/apify/apify-mcp-server/security/advisories/GHSA-6gr2-qh89-hxwm
- https://nvd.nist.gov/vuln/detail/CVE-2026-50143
- https://github.com/apify/apify-mcp-server/commit/ef686d77da3d3c86c30b2ae24218d756aa38e09c
- https://github.com/apify/apify-mcp-server/pull/927