CVE-2025-3248

high-risk
Published 2025-04-07

Langflow versions prior to 1.3.0 are susceptible to code injection in the /api/v1/validate/code endpoint. A remote and unauthenticated attacker can send crafted HTTP requests to execute arbitrary code.

Do I need to act?

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92.1% chance of exploitation in next 30 days
EPSS score — higher than 8% of all CVEs
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CISA KEV: actively exploited in the wild
On the Known Exploited Vulnerabilities catalog — federal agencies must patch
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2 public exploits available
52262, 52364
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Langflow

References (5)

Patch https://github.com/langflow-ai/langflow/pull/6911
Release Notes https://github.com/langflow-ai/langflow/releases/tag/1.3.0
Exploit https://www.horizon3.ai/attack-research/disclosures/unsafe-at-any-speed-abusing-...
Third Party Advisory https://www.vulncheck.com/advisories/langflow-unauthenticated-rce
US Government Resource https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-...
64
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 27/34 · High
Exposure 5/34 · Minimal