CVE•Published 2026-07-30•Modified 2026-08-04•1 article on news•6 live references•NVD data
CVE-2026-13435Langflow · Langflow
Vulnerability data via NVD (ingested)
CVSS v3.1
9.9
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS percentile
21
Exploit Prediction Scoring System · top 79% of all CVEs
Weaknesses (CWE)
Description
IBM Langflow OSS 1.0.0 through 1.10.1 contains an improper input validation vulnerability in the PythonREPL sandbox implementation.
Timeline
Published 2026-07-30
Modified 2026-08-04
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). Live host counts are a Premium feature.
Shodan · vuln tag
vuln:CVE-2026-13435Hosts 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-2026-13435Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-13435Censys host search filtered to this CVE id.
grep.app
CVE-2026-13435Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-13435GitHub code search for direct mentions.
Google dork
"CVE-2026-13435" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.