CVE-2026-33017
critical
KEV
CVSS v3
9.8
CVSS v4 NEW
9.3
VIR risk
10.0
Description
Langflow contains a code injection vulnerability that could allow building public flows without requiring authentication.
CISA KEV
- Vendor
- Langflow
- Product
- Langflow
- Due date
- 2026-04-08
Predictions
Exploit likelihood
99%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Exploits
Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| PyPI | langflow | <=1.8.2 | |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| langflow | langflow | {"endExcluding":"1.8.2"} | 1.8.2 |
References
- https://github.com/advisories/GHSA-rvqx-wpfh-mfx7
- https://github.com/langflow-ai/langflow/commit/73b6612e3ef25fdae0a752d75b0fabd47328d4f0
- https://github.com/langflow-ai/langflow/security/advisories/GHSA-vwmf-pq79-vjvx
- https://github.com/langflow-ai/langflow/releases/tag/1.8.2
- https://medium.com/@aviral23/cve-2026-33017-how-i-found-an-unauthenticated-rce-in-langflow-by-reading-the-code-they-already-dc96cdce5896
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-33017
- https://www.sysdig.com/blog/cve-2026-33017-how-attackers-compromised-langflow-ai-pipelines-in-20-hours
- https://nvd.nist.gov/vuln/detail/CVE-2026-33017
- https://github.com/langflow-ai/langflow/issues/12345
- https://github.com/langflow-ai/langflow/pull/12160
- https://github.com/langflow-ai/langflow
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-33017
- https://github.com/langflow-ai/langflow/security/advisories/GHSA-vwmf-pq79-vjvx ; https://nvd.nist.gov/vuln/detail/CVE-2026-33017
CWEs
CWE-94 CWE-95 CWE-306
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.