Langflow vulnerabilities: known CVEs & security history
Langflow · Actively exploited · 45 tracked CVEs · 4 actively exploited · updated August 2026 · what is a CVE? →
This is the full list of known vulnerabilities (CVEs) across all Langflow release lines — 45 in total, with 4 actively exploited in the wild. A CVE here doesn't mean your version is affected — check Langflow's current status and the safe version to run.
Known Langflow CVEs
Actively-exploited and most-severe first. Open any CVE for full details.
| CVE | Severity | CVSS | EPSS | Year |
|---|---|---|---|---|
| CVE-2026-0770⚡ exploited | critical | 9.8 | 10% | 2026 |
| CVE-2025-3248⚡ exploited | critical | 9.8 | 100% | 2025 |
| CVE-2025-34291⚡ exploited | high | 8.8 | 79% | 2025 |
| CVE-2026-55255⚡ exploited | high | 8.4 | 0% | 2026 |
| CVE-2026-10134 | critical | 10 | 0% | 2026 |
| CVE-2026-10561 | critical | 10 | 1% | 2026 |
| CVE-2026-8859 | critical | 9.9 | 0% | 2026 |
| CVE-2026-8635 | critical | 9.9 | 0% | 2026 |
| CVE-2026-8481 | critical | 9.9 | 0% | 2026 |
| CVE-2026-8476 | critical | 9.9 | 0% | 2026 |
| CVE-2026-9135 | critical | 9.9 | 1% | 2026 |
| CVE-2026-7873 | critical | 9.9 | 0% | 2026 |
| CVE-2026-13446 | critical | 9.8 | 0% | 2026 |
| CVE-2026-8505 | critical | 9.8 | 1% | 2026 |
| CVE-2026-9103 | critical | 9.8 | 0% | 2026 |
| CVE-2026-9202 | critical | 9.8 | 0% | 2026 |
| CVE-2026-9198 | critical | 9.8 | 0% | 2026 |
| CVE-2026-7871 | critical | 9.8 | 0% | 2026 |
| CVE-2026-7803 | critical | 9.8 | 0% | 2026 |
| CVE-2026-7664 | critical | 9.8 | 0% | 2026 |
| CVE-2026-10140 | critical | 9.6 | 0% | 2026 |
| CVE-2026-55447 | critical | 9.6 | 0% | 2026 |
| CVE-2026-48519 | critical | 9.6 | 1% | 2026 |
| CVE-2026-55450 | critical | 9.3 | 0% | 2026 |
| CVE-2026-7874 | critical | 9.1 | 0% | 2026 |
| CVE-2026-7663 | critical | 9.1 | 0% | 2026 |
| CVE-2026-8056 | high | 8.8 | 0% | 2026 |
| CVE-2026-7755 | high | 8.8 | 0% | 2026 |
| CVE-2026-7667 | high | 8.8 | 0% | 2026 |
| CVE-2026-14499 | high | 8.8 | 0% | 2026 |
| CVE-2026-33760 | high | 8.8 | 0% | 2026 |
| CVE-2026-3357 | high | 8.8 | 0% | 2026 |
| CVE-2026-10129 | high | 8.5 | 0% | 2026 |
| CVE-2026-10564 | high | 8.2 | 0% | 2026 |
| CVE-2026-10560 | high | 8.2 | 0% | 2026 |
| CVE-2026-13445 | high | 8.1 | 0% | 2026 |
| CVE-2026-13448 | high | 8.1 | 0% | 2026 |
| CVE-2026-7754 | high | 7.7 | 0% | 2026 |
| CVE-2026-7872 | high | 7.5 | 0% | 2026 |
| CVE-2026-55446 | high | 7.5 | 0% | 2026 |
| CVE-2026-10546 | high | 7.1 | 0% | 2026 |
| CVE-2026-42867 | medium | 6.5 | 0% | 2026 |
| CVE-2026-55423 | medium | 6.1 | 0% | 2026 |
| CVE-2026-48520 | medium | 6.1 | 0% | 2026 |
| CVE-2026-12822 | medium | 5.3 | 0% | 2026 |
Is my Langflow version affected?
The list above spans every release. To know whether your version is affected — and the minimum safe version to upgrade to — check it directly.
Check your Langflow version → · Monitor Langflow for new CVEs →
Langflow vulnerabilities — frequently asked
How many known vulnerabilities does Langflow have?
IsItPatched tracks 45 CVEs for Langflow, 4 of which are actively exploited (CISA KEV). 24 are critical-severity and 17 high-severity. These span every release line — what matters is whether the version you run is affected.
Does Langflow have any actively-exploited vulnerabilities?
Yes — 4 Langflow CVEs are in CISA's Known Exploited Vulnerabilities catalog, meaning they are confirmed exploited in the wild (1 linked to ransomware). Patch these as a priority.
What is the most severe Langflow vulnerability?
Among tracked issues, CVE-2026-0770 (CRITICAL, CVSS 9.8), which is actively exploited, ranks highest — a CWE-829 weakness.
Is Langflow safe to use?
It depends on the version. The latest supported Langflow release clears the known issues; older versions may still be affected. Check the exact version you run for a verdict.
CVE data aggregated from NVD, CISA KEV and EPSS (FIRST.org). Related: Langflow security status · Langflow end-of-life · actively-exploited CVEs. Always verify against Langflow's advisories — see our disclaimer.