CVE•Published 2026-08-17•Modified 2026-09-16•1 article on news•5 live references•NVD data
CVE-2026-56677
Vulnerability data via NVD (ingested)
CVSS v3.1
8.6
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
EPSS percentile
19
Exploit Prediction Scoring System · top 81% of all CVEs
Weaknesses (CWE)
Description
9Router is an AI router & token saver. In 0.5.4 and earlier, the POST /api/auth/oidc/test endpoint in src/app/api/auth/oidc/test/route.js passes the user-controlled issuerUrl parameter to fetchOidcDiscovery() in src/lib/auth/oidc.js without restricting private or loopback destinations, allowing unauthenticated attackers when dashboard login is disabled to scan internal services and reflect OIDC discovery fields including token_endpoint and jwks_uri.
Timeline
Published 2026-08-17
Modified 2026-09-16
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
More intel sources (5)
Shodan report
vuln:CVE-2026-56677Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-56677Censys host search filtered to this CVE id.
grep.app
CVE-2026-56677Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-56677GitHub code search for direct mentions.
Google dork
"CVE-2026-56677" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-56677 on GitHub.