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CVE-2026-33017: Langflow Code Injection Vulnerability

criticalknown exploitedpublic exploitCVE-2026-33017
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Langflow contains a code injection vulnerability that could allow building public flows without requiring authentication.

CSIRTS triage

vendor: Langflowproduct: LangflowRemote code execution
What
Langflow contains a code injection vulnerability that could allow building public flows without requiring authentication.
Who is affected
Users of Langflow.
Urgency
Remediation is urgent due to active exploitation and critical severity.
Action
Update to the latest version of Langflow.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2026-03-25
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-33017

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-33017coverage & exploitation statusNVD · CVE.org

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