CVSS 4.0
6.9 mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:NCVE-2026-68507 ideon: Unauthenticated /api/links/preview endpoint is an open SSRF relay, and its IP blocklist misses the 0.0.0.0/:: unspecified-address bypass
Medium (6.9) in 3xpyth0n ideon. EPSS 0.5% estimated probability of exploitation activity in the next 30 days.
On this page
ideon is a self-hosted visual workspace. Prior to version 0.9.5, ideon's link-preview endpoint requires no authentication at all and forwards any URL a caller supplies straight into a server-side fetch. The app does have a general-purpose SSRF guard (safeFetch/validateSafeUrl in src/app/lib/ssrf.ts), but this route sits behind no login check whatsoever, making it a fully open, anonymous URL-fetch relay - and the guard's IP blocklist itself has a gap that lets it reach the server's own loopback interface via the 0.0.0.0 "any address" bypass, a well-documented SSRF-filter evasion technique on Linux. This issue has been patched in version 0.9.5.
Severity
- EPSS
- 0.5% estimated probability of exploitation activity in the next 30 days; 44th percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
- CISA's assessment (SSVC)
- Exploitation: PoC · Automatable: no · Technical impact: partial, assessed 2026-11-13. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
- CWEs
- CWE-306 Missing Authentication for Critical Functionality
CWE-918 Server-Side Request Forgery (SSRF) - Published
- Modified
- Assigned by
- GitHub_M (CNA)
- NVD analysis
- Deferred: the NVD does not plan to analyze it
- Record from
- the NVD, synced
Ask an AI about this CVE
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Affected
Versions
From the CNA's record in the CVE List.
| Product | Affected |
|---|---|
| 3xpyth0n ideon | < 0.9.5 |
Attack patterns (CAPEC)
- CAPEC-664 Server Side Request Forgery Likelihood: High · Severity: High
- CAPEC-12 Choosing Message Identifier Likelihood: High · Severity: High
- CAPEC-36 Using Unpublished Interfaces or Functionality Likelihood: Medium · Severity: High
- CAPEC-62 Cross Site Request Forgery Likelihood: High · Severity: Very High
- CAPEC-166 Force the System to Reset Values Severity: Medium
- CAPEC-216 Communication Channel Manipulation
The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.
History
- The NVD deferred its analysis
Changes since this site first stored the record. The same for every record: /api/public/changes.