CVE-2026-0769
CVE-2026-0769 is a critical-severity vulnerability in Langflow with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 34% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-95.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- EPSS exploit prediction: 34% (98th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-4475
- Weakness: CWE-95
- Affected product: Langflow
- Published:
- Last modified:
Description
Langflow eval_custom_component_code Eval Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Langflow. Authentication is not required to exploit this vulnerability. The specific flaw exists within the implementation of eval_custom_component_code function. The issue results from the lack of proper validation of a user-supplied string before using it to execute python code. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-26972.
Frequently asked questions
- What is CVE-2026-0769?
- Langflow eval_custom_component_code Eval Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Langflow. Authentication is not required to exploit this vulnerability. The specific flaw exists within the implementation of eval_custom_component_code function. The issue results from the lack of proper validation of a user-supplied string before using it to execute python code. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-26972.
- How severe is CVE-2026-0769?
- CVE-2026-0769 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-2026-0769 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 34% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-0769?
- CVE-2026-0769 affects Langflow. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-0769?
- 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.
- Does CVE-2026-0769 have an EU (EUVD) identifier?
- Yes. CVE-2026-0769 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-4475.
- When was CVE-2026-0769 published?
- CVE-2026-0769 was published on 2026-01-23 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:langflow:langflow:1.3.2:*:*:*:*:*:*:*
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