CVE•Published 2026-06-22•Modified 2026-06-26•1 article on news•5 live references•NVD data
CVE-2026-7664Langflow · Langflow
Vulnerability data via NVD (ingested)
CVSS v3.1
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
19
Exploit Prediction Scoring System · top 81% of all CVEs
Weaknesses (CWE)
Description
IBM Langflow OSS 1.0.0 through 1.8.4 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 2026-06-22
Modified 2026-06-26
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 tag2,335 hosts
vuln:CVE-2026-7664Hosts 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-2026-7664Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-7664Censys host search filtered to this CVE id.
grep.app
CVE-2026-7664Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-7664GitHub code search for direct mentions.
Google dork
"CVE-2026-7664" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub (8)
CVE-2026-76648 repos
TalEliyahu/AI-Security-Newsletterunknown
AI Security Newsletter - A monthly digest of AI security research, insights, reports, upcoming events, and tools & resources
mcp-security-project/mcp-cve-projectunknown
The Project shares all information on MCP related CVE's published
maxgfr/awesome-starsunknown
List of repositories that I liked on Github
mooyoul/awesome-starsunknown
A curated list of my GitHub stars
Dragon-Lady/supply-chain-checkJavaScript
Read-only exposure scanner and recovery guide for the May 2026 TanStack npm supply-chain incident. Detects known indicators without executing package code.
systemslibrarian/crypto-labHTML
Crypto Lab is a free, browser-based cryptography teaching collection: interactive demonstrations spanning classical cryptography, modern protocols, cryptanalysis, privacy technolog…
Dragon-Lady/HereWeGoAgain-incident-scannerJavaScript
Here We Go Again” is an active npm/PyPI supply-chain worm, not just a credential stealer.
Dragon-Lady/linux-supply-chain-guardJavaScript
Read-only Linux host checker for supply-chain incident response, including vulnerable kernel posture, risky module state, and known developer-tooling persistence indicators