How severe is CVE-2026-33484?

CVE-2026-33484 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-33484 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-33484?

CVE-2026-33484 affects Langflow. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-33484?

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-2026-33484 have an EU (EUVD) identifier?

Yes. CVE-2026-33484 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-14876.

When was CVE-2026-33484 published?

CVE-2026-33484 was published on 2026-03-24 and last updated on 2026-06-17.

CVE-2026-33484

CVE-2026-33484 is a high-severity vulnerability in Langflow with a CVSS 3.x base score of 7.5. 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-284.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 6% (92nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-14876
Weakness: CWE-284
Affected product: Langflow
Published: 2026-03-24
Last modified: 2026-06-17

Description

Langflow is a tool for building and deploying AI-powered agents and workflows. In versions 1.0.0 through 1.8.1, the `/api/v1/files/images/{flow_id}/{file_name}` endpoint serves image files without any authentication or ownership check. Any unauthenticated request with a known flow_id and file_name returns the image with HTTP 200. In a multi-tenant deployment, any attacker who can discover or guess a `flow_id` (UUIDs can be leaked through other API responses) can download any user's uploaded images without credentials. Version 1.9.0 contains a patch.

Frequently asked questions

What is CVE-2026-33484?: Langflow is a tool for building and deploying AI-powered agents and workflows. In versions 1.0.0 through 1.8.1, the `/api/v1/files/images/{flow_id}/{file_name}` endpoint serves image files without any authentication or ownership check. Any unauthenticated request with a known flow_id and file_name returns the image with HTTP 200. In a multi-tenant deployment, any attacker who can discover or guess a `flow_id` (UUIDs can be leaked through other API responses) can download any user's uploaded images without credentials. Version 1.9.0 contains a patch.
How severe is CVE-2026-33484?: CVE-2026-33484 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-33484 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-33484?: CVE-2026-33484 affects Langflow. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-33484?: 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-2026-33484 have an EU (EUVD) identifier?: Yes. CVE-2026-33484 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-14876.
When was CVE-2026-33484 published?: CVE-2026-33484 was published on 2026-03-24 and last updated on 2026-06-17.

References

https://github.com/langflow-ai/langflow/security/advisories/GHSA-7grx-3xcx-2xv5

Affected products (1)

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

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