CVE-2026-54689
- Source
- https://cve.org/CVERecord?id=CVE-2026-54689
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-54689.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-54689
- Aliases
- Published
- 2026-09-15T17:45:19Z
- Modified
- 2026-10-28T02:31:13Z
- Severity
-
- 6.3 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N CVSS Calculator
- Summary
- mcp-searxng hardened-mode SSRF bypasses permit internal URL access
- Details
-
mcp-searxng is a Model Context Protocol server that gives AI assistants web search and URL-reading capabilities through SearXNG. Prior to 1.2.0, the web_url_read URL policy in src/url-reader.ts can be bypassed while MCP_HTTP_HARDEN is enabled and MCP_HTTP_ALLOW_PRIVATE_URLS is not enabled because redirect targets are not revalidated, 0.0.0.0 is not classified as an internal address, and IPv4-mapped IPv6 literals canonicalized to hexadecimal form are not recognized. These inputs allow an attacker-influenced tool call to make the MCP server fetch loopback or internal HTTP resources and return content from local services, private APIs, service-mesh endpoints, or cloud metadata endpoints. The separate hostname-to-private-address case addressed by the earlier partial fix is not part of these residual bypasses. This issue is fixed in version 1.2.0.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-200", "CWE-918" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54689.json" }- References
-
- https://github.com/ihor-sokoliuk/mcp-searxng/releases/tag/v1.2.0
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54689.json
- https://github.com/ihor-sokoliuk/mcp-searxng/security/advisories/GHSA-wppf-h75h-6pm6
- https://nvd.nist.gov/vuln/detail/CVE-2026-54689
- https://github.com/ihor-sokoliuk/mcp-searxng/commit/48e5ecdcb4166a60b94c252dbe74b0a318110ac4
- https://github.com/ihor-sokoliuk/mcp-searxng/pull/79
Affected packages
Git / github.com/ihor-sokoliuk/mcp-searxng
Affected ranges
- Type
- GIT
- Repo
- https://github.com/ihor-sokoliuk/mcp-searxng
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "0" }, { "fixed": "1.2.0" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" }, { "range": [ { "fixed": "48e5ecdcb4166a60b94c252dbe74b0a318110ac4" } ], "source": "REFERENCES_COMMIT" }, { "original_tag": "v1.2.0", "range": [ { "fixed": "da4d43b5123dae694d6bd9c67b8ab2f19ff23cd1" } ], "source": "REFERENCES_TAG" } ] }