CVE-2026-0769Langflow Vulnerability
Langflow eval_custom_component_code Eval Injection Remote Code Execution Vulnerability
Published Jan 23, 2026 · Updated Aug 12, 2026
Key Facts
Patch immediately- CVE-2026-0769 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Langflow.
- It is exploited in the wild, listed in CIRCL KEV, Industry KEV feed since Jun 24, 2026. Public exploit code is available.
- EPSS estimates a 42% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Scores
CVSS v3.1
9.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
42%
Higher than 98.6% of all scored CVEs
Exploit maturity
Weaponized
ATLAS score
55/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Jun 24, 2026
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Weaponized
Public exploit code
1
Proof-of-concept links
In-the-wild evidence
10
Reports of active use
Advisories And Exploit References
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CIRCL KEV | Jun 24, 2026 | n/a | Not reported |
| Industry KEV feed | Jun 24, 2026 | n/a | Not reported |
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| LangflowLangflow | 1.3.2, >= 1.3.2 | n/a |
Timeline
Publicly disclosed
Jan 23, 2026
Added to CIRCL KEV
Jun 24, 2026
Added to Industry KEV feed
Jun 24, 2026
Last updated
Aug 12, 2026
Weakness Type
- CWE-95 Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')
References
- advisorycve.org · CVERecord
- advisorynvd.nist.gov · CVE-2026-0769
- exploitMSF langflow_unauth_rce_cve_2026_0769.rb
- otherZDI-26-035
FAQ
Common Questions.
Langflow eval_custom_component_code Eval Injection Remote Code Execution Vulnerability.
Affected: Langflow versions 1.3.2, >= 1.3.2. The full list is in the CVE brief.
It is exploited in the wild, listed in CIRCL KEV, Industry KEV feed since Jun 24, 2026.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Is CVE-2026-0769 On Your Attack Surface?
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