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Exploited vulnerability · CISA KEV

Is CVE-2026-0770 exploited? Yes: in CISA KEV since 21 Jul 2026

Gociux · Langflow · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2026-0770, Langflow Inclusion of Functionality from Untrusted Control Sphere Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 21 Jul 2026, 179 days after it was published. It affects Langflow. If you run it, CISA's required action is: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

exploitedYesCISA KEV · 21 Jul 2026
ransomwareNot knownno confirmed use
EPSStop 1%among the most likely CVEs to be exploited
severity9.8CVSS 3.0 · critical
US federal due24 Jul 2026BOD 22-01 deadline

What it is

Langflow contains an inclusion of functionality from untrusted control sphere vulnerability that allows remote attackers to execute arbitrary code on affected installations.

VendorLangflow (5 exploited CVEs in KEV)
ProductLangflow
VulnerabilityLangflow Inclusion of Functionality from Untrusted Control Sphere Vulnerability
WeaknessCWE-829
Published23 Jan 2026
Added to KEV21 Jul 2026
Reported by (CNA)zdi

What to do

  1. Check whether you run it. Look for Langflow in your asset inventory, including appliances and cloud images. Stack check lists every exploited Langflow CVE at once.
  2. Apply the fix. Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
  3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 23 Jan 2026.
  4. Get told next time. Email alerts when CISA adds a CVE for Langflow.

Other exploited CVEs in Langflow

References

Questions

Is CVE-2026-0770 being exploited?

Yes. CISA added CVE-2026-0770 to the Known Exploited Vulnerabilities catalog on 21 Jul 2026, which means there is reliable evidence of exploitation in the wild.

Is CVE-2026-0770 used in ransomware attacks?

CISA does not list known ransomware use for it. That can change, and exploitation alone is reason to fix it first.

How do I fix CVE-2026-0770?

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. Check Langflow's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected Langflow and watch it for signs of compromise.

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in July 2026 · Langflow scorecard · act-now radar.

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