How severe is CVE-2026-9205?

CVE-2026-9205 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-9205 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-9205?

CVE-2026-9205 affects Langflow. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-9205?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-9205 published?

CVE-2026-9205 was published on 2026-08-05 and last updated on 2026-08-07.

CVE-2026-9205

CVE-2026-9205 is a high-severity vulnerability in Langflow with a CVSS 3.x base score of 7.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-338.

Key facts

Severity: High (CVSS 3.x base score 7.4)
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-338
Affected product: Langflow
Published: 2026-08-05
Last modified: 2026-08-07

Description

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

Frequently asked questions

What is CVE-2026-9205?: IBM Langflow OSS contains a weak cryptographic key derivation vulnerability in the ensure_fernet_key() function.
How severe is CVE-2026-9205?: CVE-2026-9205 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-9205 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-9205?: CVE-2026-9205 affects Langflow. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-9205?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-9205 published?: CVE-2026-9205 was published on 2026-08-05 and last updated on 2026-08-07.

References

https://www.ibm.com/support/pages/node/7282648

Affected products (1)

cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*

More vulnerabilities in Langflow

CVE-2026-10134 — Critical (CVSS 10.0): IBM Langflow OSS 1.0.0 through 1.9.3 allows an attacker to read every secret available to the Langflow process, read…
CVE-2026-10561 — Critical (CVSS 10.0): IBM Langflow OSS 1.0.0 through 1.9.3 has an vulnerability due to an improper isolation of Python execution combined…
CVE-2026-19295 — Critical (CVSS 9.9): IBM Langflow OSS 1.0.0 through 1.11.1 allows an authenticated attacker to execute arbitrary operating system commands…
CVE-2026-12946 — Critical (CVSS 9.9): IBM Langflow OSS 1.0.0 through 1.10.0 could allow a remote attacker to inject arbitrary code on the system, due to the…
CVE-2026-13435 — Critical (CVSS 9.9): IBM Langflow OSS 1.0.0 through 1.10.1 contains an improper input validation vulnerability in the PythonREPL sandbox…
CVE-2026-8859 — Critical (CVSS 9.9): IBM Langflow OSS 1.0.0 through 1.10.0 Langflow could allow an attacker to write arbitrary files to unintended locations…

All CVEs affecting Langflow →

Other CWE-338 vulnerabilities

CVE-2026-79901 — Critical (CVSS 9.9): In deployments using BoKS keytab management, affected versions of boks_keytabmd generate Active Directory…
CVE-2026-16235 — Critical (CVSS 9.8): Crypt::Password versions through 0.28 for Perl generate insecure random values for salts. These versions use the…
CVE-2026-61500 — Critical (CVSS 9.8): Rejetto HFS 3.0.0 through 3.2.0 derives its session-cookie signing key from the non-cryptographic Math.random()…
CVE-2026-56141 — Critical (CVSS 9.8): In JetBrains Hub before 2026.1.13757, 2025.3.148033, 2025.2.148048, 2025.1.148120, 2024.3.148430, 2024.2.148429 account…
CVE-2026-3256 — Critical (CVSS 9.8): HTTP::Session versions before 0.54 for Perl defaults to using insecurely generated session ids. HTTP::Session defaults…
CVE-2025-15604 — Critical (CVSS 9.8): Amon2 versions before 6.17 for Perl use an insecure random_string implementation for security functions. In versions…

Browse all CWE-338 vulnerabilities →

Threat intelligence

Threat-intel indicators referencing this CVE:

3.19.213.118 (ipv4-addr)
56.155.73.159 (ipv4-addr)