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🐍 PyPI

GHSA-rvqx-wpfh-mfx7

GHSA-rvqx-wpfh-mfx7 is a Missing Authentication vulnerability in langflow. It is in CISA's Known Exploited Vulnerabilities catalog (added 2025-05-05) and has been used in ransomware campaigns — treat it as actively exploited and patch now. O3 Security confirms whether GHSA-rvqx-wpfh-mfx7 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

Langflow Unauth RCE

Also known asCVE-2025-3248PYSEC-2025-36PYSEC-2026-380
Published
Jun 17, 2025
Updated
Jun 29, 2026
Affected
2 pkgs
Patched
2 / 2
Exploits
8 known

EPSS Exploitation Probability

via FIRST.org ↗
100.0%probability of exploitation in next 30 days
Very High Risk100th percentile0.00%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Blast Radius

2 pkgs affected
🐍langflow🐍langflow-base

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.

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.

Affected Packages

2 total 2 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPIlangflowall versions1.3.0
🐍PyPIlangflow-baseall versions0.3.0
Exploits & PoCs
8

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

EDB-52364webappsmultiple

Langflow 1.2.x - Remote Code Execution (RCE)

by Raghad Abdallah Al-syouf · Jul 16, 2025

EDB-52262remotemultiple

Langflow 1.3.0 - Remote Code Execution (RCE)

by VeryLazyTech · Apr 18, 2025

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for langflow. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update langflow to 1.3.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-rvqx-wpfh-mfx7 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 pinpoints whether GHSA-rvqx-wpfh-mfx7 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-rvqx-wpfh-mfx7. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

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.
O3 Security · Impact-Aware SCA

Is GHSA-rvqx-wpfh-mfx7 in your dependencies?

O3 detects GHSA-rvqx-wpfh-mfx7 across PyPI dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.