CVE-2026-9205 · GHSA-jxw3-mjmx-3pqm
Langflow: Weak Fernet Key via random.seed()
- Risk score
- 73/100
- CVSS
- 9.8 v3.1
- Exploit chance (30 days)
- 0.3%
- Published
- 5 Aug 2026
Open in the live forecast Today's forecast
What to know
- What it is
- IBM Langflow OSS contains a weak cryptographic key derivation vulnerability in the ensure_fernet_key() function.
- Affected
- langflow (pip) <= 1.10.0
- Fix
- Upgrade langflow to 1.10.1 or later.
- Exploitation
- No known exploitation
Why it is Amber
- CVSS 9.8 critical
- Remotely exploitable without logging in
- On your watchlist: PyPI
Affected packages
| Package | Ecosystem | Vulnerable | Fixed in |
|---|---|---|---|
| langflow | pip | <= 1.10.0 | 1.10.1 |
References
- https://github.com/advisories/GHSA-jxw3-mjmx-3pqm
- https://github.com/langflow-ai/langflow/security/advisories/GHSA-jxw3-mjmx-3pqm
- https://nvd.nist.gov/vuln/detail/CVE-2026-9205
- https://github.com/langflow-ai/langflow/pull/13704
- https://github.com/langflow-ai/langflow/commit/094694d3f20c1da499f4d8dbac15c510609e3026
- https://www.ibm.com/support/pages/node/7282648
- https://github.com/advisories/GHSA-jxw3-mjmx-3pqm
Original description
IBM Langflow OSS contains a weak cryptographic key derivation vulnerability in the ensure_fernet_key() function.
Last activity 5 Oct 2026. Patch Forecast updates every hour.