critical Known exploitedREV. 01
CVE-2026-0770Langflow — untrusted code inclusion, unauthenticated RCE as root
Langflow's validate endpoint accepts an exec_globals parameter that lets it load code from an untrusted source. Anyone who can reach the service, with no login, can run arbitrary code as root on the host. Actively exploited in the wild.
Read the risk
THE VITAL STATS- CVSS score
- 9.8/ 10 CVSS v3.0
- EPSS probability
- 64% Likelihood of exploitation
- Attack complexity
- Low Conditions needed to exploit
- Known exploited
- Yes — CISA KEV
- CVE published
- 2026-01-23
- Added to KEV
- 2026-07-21
- Exploit published
- Not recorded
- Confidence
- medium
- Kill chain
- initial access
- MITRE ATT&CK
- T1190
- Severity
- critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attacker needsNetwork access to the Langflow validate endpoint; no credentials or user interaction needed.
Behind the card
3 REFERENCES- 01CVE recordNVD recordnvd.nist.gov
- 02CISACISA Known Exploited Vulnerabilities catalogcisa.gov
- 03Writeupzerodayinitiative.comzerodayinitiative.com
Field-level provenanceTRACE THE SOURCES +
Which source supports each field, when it was retrieved, and who extracted it.
| Fields | Source | Retrieved | Extractor | Confidence |
|---|---|---|---|---|
| cvss, exploitation.attack_complexity, exploitation.exploit_available, references, published_at | nvd.nist.gov | 2026-09-22 | scrty-crds-pipeline/0.1 | high |
| exploitation.known_exploited, exploitation.kev_added | cisa.gov | 2026-09-22 | scrty-crds-pipeline/0.1 | high |
| epss | api.first.org | 2026-09-22 | scrty-crds-pipeline/0.1 | high |
| title, summary, severity, remediation, mitre_attack, kill_chain, recommended_action, confidence, tags, exploitation.prerequisites | nvd.nist.gov | 2026-09-22 | claude-code | high |
Printing history
THE RECORD- r1Initial base card
First printing. This card has not been reprinted since publication.