Critical severityCISA KEVNVD Advisory· Published Apr 7, 2025· Updated Nov 29, 2025
Langflow < 1.3.0 Unauthenticated RCE via /api/v1/validate/code
CVE-2025-3248
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
langflowPyPI | < 1.3.0 | 1.3.0 |
langflow-basePyPI | < 0.3.0 | 0.3.0 |
Affected products
3- ghsa-coords2 versions
< 1.3.0+ 1 more
- (no CPE)range: < 1.3.0
- (no CPE)range: < 0.3.0
- Range: 0
Patches
Vulnerability mechanics
References
10- github.com/langflow-ai/langflow/pull/6911ghsapatchWEB
- www.horizon3.ai/attack-research/disclosures/unsafe-at-any-speed-abusing-python-exec-for-unauth-rce-in-langflow-ai/mitreexploit
- github.com/advisories/GHSA-rvqx-wpfh-mfx7ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2025-3248ghsaADVISORY
- www.vulncheck.com/advisories/langflow-unauthenticated-rceghsathird-party-advisoryWEB
- github.com/langflow-ai/langflow/commit/faac4db133de32fcb6d483fa9ff52f40ce42bdc0ghsaWEB
- github.com/langflow-ai/langflow/releases/tag/1.3.0ghsarelease-notesWEB
- github.com/langflow-ai/langflow/security/advisories/GHSA-rvqx-wpfh-mfx7ghsaWEB
- www.cisa.gov/known-exploited-vulnerabilities-catalogghsaWEB
- www.horizon3.ai/attack-research/disclosures/unsafe-at-any-speed-abusing-python-exec-for-unauth-rce-in-langflow-aighsaWEB
News mentions
3- Langflow RCE Exploited to Deploy Monero Miner on Exposed AI App EndpointsThe Hacker News · Jun 30, 2026
- From Langflow to Monero: Inside CVE-2026-33017 CryptominerTrend Micro Research · Jun 23, 2026
- Path traversal flaw in AI dev platform Langflow exploited in attacksBleepingComputer · Jun 10, 2026