Advisoriesby IbisLangflowGHSA-rvqx-wpfh-mfx7
Langflow Unauth RCE
Fix: upgrade to 1.3.0 or later
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.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| langflow PyPI | < 1.3.0 | 1.3.0 |
Details and references
- CVSS 4.0
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A
- Severity from
- GitHub (reviewed advisory)
- Weakness
- CWE-94
- Also known as
- CVE-2025-3248, PYSEC-2025-36, PYSEC-2026-380
- github.com/langflow-ai/langflow/security/advisories/GHSA-rvqx-wpfh-mfx7
- nvd.nist.gov/vuln/detail/CVE-2025-3248
- github.com/langflow-ai/langflow/pull/6911
- github.com/langflow-ai/langflow/commit/faac4db133de32fcb6d483fa9ff52f40ce42bdc0
- github.com/langflow-ai/langflow
- github.com/langflow-ai/langflow/releases/tag/1.3.0
- github.com/pypa/advisory-database/tree/main/vulns/langflow-base/PYSEC-2026-380.yaml
- pypi.org/project/langflow-base
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-3248
- www.horizon3.ai/attack-research/disclosures/unsafe-at-any-speed-abusing-python-exec-for-unauth-rce-in-langflow-ai
- www.vulncheck.com/advisories/langflow-unauthenticated-rce
More Langflow advisories
All Langflow
Langflow affected by Remote Code Execution via validate_code() exec()CVE-2026-0770no fix yetLangflow Missing Authentication on Critical API EndpointsCVE-2026-21445fixed in 1.7.1External Control of File Name or Path in LangflowCVE-2025-68478fixed in 1.7.1Langflow vulnerable to Server-Side Request ForgeryCVE-2025-68477fixed in 1.7.1Langflow CORS misconfiguration enables Account Takeover and RCECVE-2025-34291fixed in 1.7.0Langflow Vulnerable to Privilege Escalation via CLI Superuser Creation (Post-RCE)CVE-2025-57760fixed in 1.5.1