CVE-2026-56104
HIGH SEVERITYCVSS Score & Metrics
Base Score
7.4 / 10
Vector String
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Vulnerability Description
Chainlit before 2.10.1 contains a session hijacking vulnerability that allows unauthenticated attackers to restore and inherit authenticated user sessions by presenting a valid sessionId during WebSocket session restoration without ownership verification. Attackers can exploit the restore_existing_session path to assume a victim's permissions and roles, enabling unauthorized invocation of tools and access to data restricted to the authenticated victim.
Vulnerability Details
Published Date
Last Modified
CWE ID
CWE-862
Source
NVD
Vendor
Chainlit
Product
chainlit
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