CVE-2026-105741
- Source
- https://cve.org/CVERecord?id=CVE-2026-105741
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-105741.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-105741
- Aliases
- Published
- 2026-10-05T20:56:00Z
- Modified
- 2026-10-28T02:31:11Z
- Severity
-
- 7.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L CVSS Calculator
- Summary
- Langflow: IP Spoofing Bypass via `X-Forwarded-For` Allowing Remote Configuration Write
- Details
-
Langflow is a tool for building and deploying AI-powered agents and workflows. From 1.5.0 until 1.10.3, an IP spoofing vulnerability in the Model Context Protocol (MCP) configuration installation endpoint (POST /api/v1/mcp/project/{project_id}/install) allowed authenticated remote attackers to bypass the "local-only" access restriction. By sending a spoofed X-Forwarded-For: 127.0.0.1 header, an attacker could make the server treat the request as originating from localhost, letting them write/overwrite an MCP client configuration file on the server's filesystem. This vulnerability is fixed in 1.10.3.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-290", "CWE-345" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105741.json" }- References
-
- https://github.com/langflow-ai/langflow/releases/tag/v1.10.3
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/105xxx/CVE-2026-105741.json
- https://github.com/langflow-ai/langflow/security/advisories/GHSA-4f6c-2vvp-gw82
- https://nvd.nist.gov/vuln/detail/CVE-2026-105741
- https://github.com/langflow-ai/langflow/commit/1f39a4b9d62c9dfa1b21fa7f85e23a180c351b72
- https://github.com/langflow-ai/langflow/commit/94859df33acd70b2a1f816e26d68f5e89a7e5639
- https://github.com/langflow-ai/langflow/pull/13915
Affected packages
Git / github.com/langflow-ai/langflow
Affected ranges
- Type
- GIT
- Repo
- https://github.com/langflow-ai/langflow
- Events
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "1.5.0" }, { "fixed": "1.10.3" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" }, { "range": [ { "fixed": "1f39a4b9d62c9dfa1b21fa7f85e23a180c351b72" } ], "source": "REFERENCES_COMMIT" }, { "range": [ { "fixed": "94859df33acd70b2a1f816e26d68f5e89a7e5639" } ], "source": "REFERENCES_COMMIT" }, { "original_tag": "v1.10.3", "range": [ { "fixed": "a8d94f9f4fb34fe488ec317bdade4e83611ef17a" } ], "source": "REFERENCES_TAG" } ] }