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Langflow CVE-2026-0768 Exploited in Credential Theft Campaign

Langflow CVE-2026-0768 Exploited in Credential Theft Campaign

First seen 6 Oct 2026, 11:26 UTC • •
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ThreatCluster AI
ThreatCluster •October 6, 2026 at 12:58 UTC
  • •CVE-2026-0768 is a critical RCE vulnerability in Langflow, allowing root access.
  • •Over 360 exploitation attempts logged, with significant activity from Russia.
  • •Attackers target sensitive environment variables for credential theft and cryptomining.

CVE-2026-0768, an unauthenticated remote code execution vulnerability in Langflow, is being, allowing attackers to execute arbitrary code with root privileges. As of October 6, 2026, VulnCheck reported over 360 exploitation attempts, primarily targeting environment variables such as AWS secrets and OpenAI API keys. The flaw, disclosed on January 23, 2026, stems from improper input validation in the validate endpoint of Langflow's API. Attackers leverage this vulnerability to perform credential harvesting and deploy cryptominers, with significant activity noted from Russia. The exploitation campaign has been characterized by rapid escalation, with over 50 initial attempts detected on August 30, 2026. The vulnerability affects Langflow versions 1.4.2 and earlier, and while no public proof-of-concept exploit is known, the threat remains severe. Organizations using Langflow are urged to assess their exposure and implement necessary security measures.

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Timeline

2025-04-07
CVE-2025-3248 published
Vulnerability assigned a CVE identifier and published in the National Vulnerability Database.
MITRE
2026-01-23
CVE-2026-0768 published
CVE-2026-0768 disclosed, rated CVSS 9.8, affecting Langflow versions 1.4.2 and earlier.
Cryptorank
2026-01-23
CVE-2026-0769 published
Vulnerability assigned a CVE identifier and published in the National Vulnerability Database.
MITRE
2026-03-27
CVE-2026-5027 published
Vulnerability assigned a CVE identifier and published in the National Vulnerability Database.
MITRE
2026-08-30
Initial exploitation attempts observed
VulnCheck detected over 50 exploitation attempts on Langflow within hours, indicating rapid escalation.
Cryptorank
2026-09-01
Cumulative exploitation attempts exceed 360
By this date, VulnCheck recorded over 360 cumulative exploitation attempts targeting CVE-2026-0768.
Cryptorank
2026-10-01
CVE-2026-104286 published
A new critical CVE related to Langflow was published, indicating ongoing vulnerabilities in the framework.
Cryptorank
2026-10-06
Current exploitation status reported
As of today, VulnCheck confirmed ongoing exploitation attempts, primarily targeting sensitive credentials.
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Common questions

Which versions of Langflow are affected?
Langflow versions 1.4.2 and earlier are affected by CVE-2026-0768.
Is CVE-2026-0768 actively exploited?
Yes, there are confirmed active exploitation attempts targeting this vulnerability.
What should organizations do to protect themselves?
Organizations should assess their Langflow deployments for exposure and implement security measures to mitigate the risk.