CVE-2026-56104 漏洞深度分析

漏洞概述

CVE 编号： CVE-2026-56104
CVSS 评分： 8.8（HIGH）
CVSS 向量： CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE 分类： CWE-862
漏洞状态： Deferred
发布时间： 2026-06-22T16:16:40.227
最后更新： 2026-07-14T22:17:18.357

漏洞描述

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.

影响分析

此漏洞的具体影响取决于实际利用场景。"

修复建议

1. 及时关注厂商发布的安全更新和补丁
2. 升级受影响组件到最新版本
3. 如无法立即升级，参考厂商提供的临时缓解措施
4. 加强网络访问控制和监控

参考链接

1. https://github.com/Chainlit/chainlit/commit/5effb664f1e0af4a4f0a42fe63ea979676039a7f
2. https://github.com/Chainlit/chainlit/pull/2857
3. https://github.com/Chainlit/chainlit/releases/tag/2.10.1
4. https://www.vulncheck.com/advisories/chainlit-session-hijacking-via-websocket-session-restoration