CVE-2026-7803
CVE-2026-7803 is a critical-severity vulnerability in Langflow with a CVSS 3.x base score of 9.8. 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-20.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- EPSS exploit prediction: 0% (28th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-20
- Affected product: Langflow
- Published:
- Last modified:
Description
IBM Langflow OSS 1.0.0 through 1.10.0 could allow arbitrary code execution due to improper validation of flow nodes with missing or empty component type fields.
Frequently asked questions
- What is CVE-2026-7803?
- IBM Langflow OSS 1.0.0 through 1.10.0 could allow arbitrary code execution due to improper validation of flow nodes with missing or empty component type fields.
- How severe is CVE-2026-7803?
- CVE-2026-7803 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2026-7803 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-7803?
- CVE-2026-7803 affects Langflow. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-7803?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- When was CVE-2026-7803 published?
- CVE-2026-7803 was published on 2026-06-30 and last updated on 2026-07-02.
References
Affected products (1)
- cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*
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