Exploited vulnerabilities / CVE-2026-33017
Confirmed exploited · exploited vulnerability · LangflowCVE-2026-33017
Langflow exploited vulnerability, confirmed exploited in the wild.
Langflow contains a code injection vulnerability that could allow building public flows without requiring authentication.
| CISA's name for it | Langflow Code Injection Vulnerability |
|---|---|
| Vendor and product | Langflow · Langflow |
| Type | exploited vulnerability · CWE-94, CWE-95, CWE-306 |
| Exploited | Confirmed by CISA listed 25 March 2026 |
| Likelihood | one of the most likely to be exploited of every vulnerability tracked |
| Deadline | 8 April 2026 · already passed |
| Used in ransomware | Not reported |
| Advisories | github.com ↗ · nvd.nist.gov ↗ |
Three steps, in this order
Apply the vendor's fix or mitigation; CISA lists only vulnerabilities seen exploited.
If you cannot patch now, restrict network access to the affected product.
Check for signs of compromise since the date it was added to the list.
| CISA's required action | Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. |
|---|
Know before someone else finds it
Threat Landscape Monitoring fingerprints the software your internet-facing hosts disclose and matches it, every day, against this list and the exploitation scores. When a new entry touches something you run, you are told once, with the host and the fix. The free plan covers one domain.
CVE-2026-33017 in short
Is CVE-2026-33017 being exploited?
Yes. CISA added CVE-2026-33017 to its Known Exploited Vulnerabilities catalogue on 25 March 2026, which it does only on evidence of exploitation in the wild.
What is the CISA deadline for CVE-2026-33017?
US federal agencies must remediate it by 8 April 2026. Everyone else should treat that date as the latest safe point to patch an internet-facing system.
How likely is CVE-2026-33017 to be exploited in the next 30 days?
FIRST's Exploit Prediction Scoring System gives it 96%, the 99th percentile of every CVE it scores.
How do I fix CVE-2026-33017?
Apply the vendor's fix or mitigation; CISA lists only vulnerabilities seen exploited. If you cannot patch now, restrict network access to the affected product. Check for signs of compromise since the date it was added to the list.
Other Langflow vulnerabilities being exploited
| CVE | Product | Type | Listed |
|---|---|---|---|
| CVE-2026-0770 | Langflow | remote code execution | 21 July 2026 |
| CVE-2026-55255 | Langflow | exploited vulnerability | 7 July 2026 |
| CVE-2025-34291 | Langflow | remote code execution | 21 May 2026 |
Sources: CISA Known Exploited Vulnerabilities catalogue (released 10 November 2026) and FIRST EPSS. Page compiled automatically by SAK T.L.M, the threat-intelligence tool of SAK T.E.C, on 13 November 2026.