CVE-2026-8476

IBM Langflow OSS 1.0.0 through 1.10.0 contain a critical remote code execution vulnerability in the disk-based caching mechanism. The AsyncDiskCache class uses Python's unsafe pickle.loads() function to deserialize cached objects from disk without validation, integrity verification, or authentication, enabling arbitrary code execution when malicious pickle payloads are processed. Attackers who can influence cached data through file system access, malicious workflow inputs, custom components, or API manipulation can achieve complete system compromise with the privileges of the Langflow server process.

Score
CVSS 3.1 9.9 Critical
Status
Analyzed - psirt@us.ibm.com
Published
2026-07-17
Last modified
2026-10-24
Weaknesses
CWE-502

Affected products

References

 
 
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