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Advisories

Chainlit through 2.12.0 Path Traversal via socket.io sessionId

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severity
high
date
Affecting

  • chainlit <= 2.12.0

CWE
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVSS
8.8
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
Credit
mil4n
Description
Chainlit through 2.12.0 fails to validate the client-supplied socket.io sessionId parameter, allowing unauthenticated attackers to traverse filesystem paths by injecting absolute or relative path sequences. Attackers can craft malicious sessionId values that escape the upload directory and recursively delete arbitrary directories accessible to the service process.

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