CVE•Published 2026-03-27•Modified 2026-08-18•2 articles on news•4 live references•NVD data
CVE-2026-5027Langflow · Langflow
Vulnerability data via NVD (ingested)
CVSS v3.1
8.8
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
98
Exploit Prediction Scoring System · top 2% of all CVEs
Weaknesses (CWE)
Description
The 'POST /api/v2/files' endpoint does not sanitize the 'filename' parameter from the multipart form data, allowing an attacker to write files to arbitrary locations on the filesystem using path traversal sequences ('../').
Timeline
Published 2026-03-27
Modified 2026-08-18
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 tag37 hosts
vuln:CVE-2026-5027Hosts 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-2026-5027Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-5027Censys host search filtered to this CVE id.
grep.app
CVE-2026-5027Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-5027GitHub code search for direct mentions.
Google dork
"CVE-2026-5027" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub (8)
CVE-2026-50278 repos
nomi-sec/PoC-in-GitHubunknown
📡 PoC auto collect from GitHub. ⚠️ Be careful Malware.
webpro255/awesome-ai-agent-attacksunknown
A curated timeline of real AI agent security incidents, breaches, and vulnerabilities (2024-2026). Every entry sourced and dated.
DarkFunct/TK-CVE-RepoPython
TK-CVE-Repo
mooyoul/awesome-starsunknown
A curated list of my GitHub stars
opendr-io/causalityJupyter Notebook
The difference between exploitation prediction and detection is akin to the difference between detecting a missile launch or a detonation. Every avoided exploitation cycle saves hu…
oslook/n8n-workflowsunknown
4200 + Workflow Automation Templates are Grouped by Categories/Services for easy navigation
yahiahamza/CVE-2026-5027Python
CVE-2026-5027 - Langflow Path Traversal to Remote Code Execution (CVSS 8.8)
Amitcoh1/agentbreakerTypeScript
Circuit breaker + hierarchical dollar budget for LangGraph agents. In-process, no proxy.