CVE-2026-65968
- Source
- https://cve.org/CVERecord?id=CVE-2026-65968
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-65968.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-65968
- Aliases
-
- GHSA-cvcr-fcf6-366r
- Published
- 2026-11-11T20:57:39Z
- Modified
- 2026-11-14T02:30:30Z
- Severity
-
- 5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- ideon: Unauthenticated SSRF in /api/proxy/image via WHATWG bracketed/hex-mapped IPv6 bypass of isSafeUrl guard
- Details
-
ideon is a self-hosted visual workspace. Prior to version 0.9.4, validateUrlForSSRF() / safeFetch() in lib/oauth/ssrf-protection.ts (and the parallel validateMcpUrl() in lib/security/validators.ts) perform SSRF host-blocking by string/regex matching on new URL(url).hostname. Their IPv6 branch only recognises the textual forms ::1, fe80:/fc00:/fd00: prefixes, and the dotted-decimal IPv4-mapped form ::ffff:127.x. It does not recognise the WHATWG-canonical IPv4-mapped-IPv6 host that Node emits for a mapped address, which is hex-compressed and bracket-wrapped: [::ffff:7f00:1] for 127.0.0.1, [::ffff:a9fe:a9fe] for 169.254.169.254. An authenticated user who registers a STREAMABLE_HTTP / SSE MCP server with URL http://[::ffff:7f00:1]:PORT/ (loopback) or http://[::ffff:a9fe:a9fe]/ (cloud metadata) passes both guards, and the server-side OAuth-discovery action then fetches that host, yielding server-side request forgery to loopback and to the cloud metadata service. This issue has been patched in version 0.9.4.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-918" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/65xxx/CVE-2026-65968.json" }- References
-
- https://github.com/3xpyth0n/ideon/releases/tag/v0.9.4
- https://github.com/3xpyth0n/ideon/security/advisories/GHSA-cvcr-fcf6-366r
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/65xxx/CVE-2026-65968.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-65968
- https://github.com/3xpyth0n/ideon/commit/58e2f26bb7259d24c963a753962ac34f56c63b01
Affected packages
Git / github.com/3xpyth0n/ideon
Affected ranges
- Type
- GIT
- Repo
- https://github.com/3xpyth0n/ideon
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "0" }, { "fixed": "0.9.4" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" }, { "range": [ { "fixed": "58e2f26bb7259d24c963a753962ac34f56c63b01" } ], "source": "REFERENCES_COMMIT" }, { "original_tag": "v0.9.4", "range": [ { "fixed": "63cc5c1a886fc6408ac56979f136177cea060b48" } ], "source": "REFERENCES_TAG" } ] }