How severe is CVE-2026-6543?

CVE-2026-6543 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-6543 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-6543?

CVE-2026-6543 affects Langflow Langflow Desktop. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-6543?

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.

Does CVE-2026-6543 have an EU (EUVD) identifier?

Yes. CVE-2026-6543 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26448.

When was CVE-2026-6543 published?

CVE-2026-6543 was published on 2026-04-30 and last updated on 2026-06-17.

CVE-2026-6543

CVE-2026-6543 is a high-severity vulnerability in Langflow Langflow Desktop with a CVSS 3.x base score of 8.8. 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-94.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-26448
Weakness: CWE-94
Affected product: Langflow Langflow Desktop
Published: 2026-04-30
Last modified: 2026-06-17

Description

IBM Langflow Desktop 1.0.0 through 1.8.4 Langflow allows an attacker to execute arbitrary commands with the privileges of the process running Langflow. This allows reading sensitive environment variables (API keys, DB credentials), modifying files, or launching further attacks on the internal network.

Frequently asked questions

What is CVE-2026-6543?: IBM Langflow Desktop 1.0.0 through 1.8.4 Langflow allows an attacker to execute arbitrary commands with the privileges of the process running Langflow. This allows reading sensitive environment variables (API keys, DB credentials), modifying files, or launching further attacks on the internal network.
How severe is CVE-2026-6543?: CVE-2026-6543 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-6543 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-6543?: CVE-2026-6543 affects Langflow Langflow Desktop. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-6543?: 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.
Does CVE-2026-6543 have an EU (EUVD) identifier?: Yes. CVE-2026-6543 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26448.
When was CVE-2026-6543 published?: CVE-2026-6543 was published on 2026-04-30 and last updated on 2026-06-17.

References

https://www.ibm.com/support/pages/node/7271092

Affected products (1)

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

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