CVE-2026-9205

HIGH
Published August 5, 2026

IBM Langflow OSS contains a weak cryptographic key derivation vulnerability in the ensure_fernet_key()...

Full CISO analysis pending enrichment.

How severe is it?

CVSS 3.1
7.4 / 10
EPSS
N/A
Exploitation Status
No known exploitation
Sophistication
N/A

What is the attack surface?

AV AC PR UI S C I A
AV Network
AC High
PR None
UI None
S Unchanged
C High
I High
A None

What should I do?

No patch available

Monitor for updates. Consider compensating controls or temporary mitigations.

Which compliance frameworks are affected?

Compliance analysis pending. Sign in for full compliance mapping when available.

Frequently Asked Questions

What is CVE-2026-9205?

IBM Langflow OSS contains a weak cryptographic key derivation vulnerability in the ensure_fernet_key() function.

Is CVE-2026-9205 actively exploited?

No confirmed active exploitation of CVE-2026-9205 has been reported, but organizations should still patch proactively.

How to fix CVE-2026-9205?

No patch is currently available. Monitor vendor advisories for updates.

What is the CVSS score for CVE-2026-9205?

CVE-2026-9205 has a CVSS v3.1 base score of 7.4 (HIGH).

What are the technical details?

Original Advisory

IBM Langflow OSS contains a weak cryptographic key derivation vulnerability in the ensure_fernet_key() function.

Weaknesses (CWE)

CWE-338 — Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG): The product uses a Pseudo-Random Number Generator (PRNG) in a security context, but the PRNG's algorithm is not cryptographically strong.

  • [Implementation] Use functions or hardware which use a hardware-based random number generation for all crypto. This is the recommended solution. Use CyptGenRandom on Windows, or hw_rand() on Linux.

Source: MITRE CWE corpus.

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Timeline

Published
August 5, 2026
Last Modified
August 5, 2026
First Seen
August 5, 2026