langflow-ai langflow up to 1.8.4 Full Builtins code_parser.py CodeParser.parse_callable_details command injection
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 5.7 | $0-$5k | 0.00 |
Summary
A vulnerability was found in langflow-ai langflow up to 1.8.4. It has been rated as critical. This affects the function CodeParser.parse_callable_details of the file src/lfx/src/lfx/custom/code_parser/code_parser.py of the component Full Builtins Module Handler. The manipulation leads to command injection.
This vulnerability is uniquely identified as CVE-2026-7687. The attack is possible to be carried out remotely. Moreover, an exploit is present.
The vendor was contacted early about this disclosure but did not respond in any way.
Details
A vulnerability, which was classified as critical, has been found in langflow-ai langflow up to 1.8.4. This issue affects the function CodeParser.parse_callable_details of the file src/lfx/src/lfx/custom/code_parser/code_parser.py of the component Full Builtins Module Handler. The manipulation with an unknown input leads to a command injection vulnerability. Using CWE to declare the problem leads to CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability.
The advisory is shared at yuque.com. The identification of this vulnerability is CVE-2026-7687. The exploitation is known to be easy. The attack may be initiated remotely. Technical details as well as a public exploit are known. MITRE ATT&CK project uses the attack technique T1202 for this issue.
The exploit is available at yuque.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-26825). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Product
Type
Vendor
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.3VulDB Meta Temp Score: 5.7
VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔒
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Command injectionCWE: CWE-77 / CWE-74 / CWE-707
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
05/02/2026 Advisory disclosed05/02/2026 VulDB entry created
05/03/2026 VulDB entry last update
Sources
Advisory: yuque.comStatus: Not defined
CVE: CVE-2026-7687 (🔒)
GCVE (CVE): GCVE-0-2026-7687
GCVE (VulDB): GCVE-100-360857
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 05/02/2026 18:11Updated: 05/03/2026 12:24
Changes: 05/02/2026 18:11 (58), 05/03/2026 12:24 (1)
Complete: 🔍
Submitter: limshow
Cache ID: 216::103
Submit
Accepted
- Submit #798731: langflow-ai langflow 1.8.4 Command Injection (by limshow)
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
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