CVE•Published 2026-06-30•Modified 2026-07-02•1 article on news•6 live references•NVD data
CVE-2026-7663Langflow · Langflow
Vulnerability data via NVD (ingested)
CVSS v3.1
9.1
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS percentile
15
Exploit Prediction Scoring System · top 85% of all CVEs
Weaknesses (CWE)
Description
IBM Langflow OSS 1.0.0 through 1.9.6 could allow unauthenticated attackers to access protected MCP project resources and execute MCP operations due to improper authorization enforcement in the Streamable MCP transport endpoint.
Timeline
Published 2026-06-30
Modified 2026-07-02
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).
Shodan · vuln tag2,326 hosts
vuln:CVE-2026-7663Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Langflow Langflow"All exposed Langflow Langflow instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Langflow"HTTP body or banner mentions "Langflow" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-7663Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-7663Censys host search filtered to this CVE id.
grep.app
CVE-2026-7663Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-7663GitHub code search for direct mentions.
Google dork
"CVE-2026-7663" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.