CVE-2026-82290— Chainlit Feedback Endpoints Missing Ownership Validation
Quick assessment
Affected
Chainlit chainlit
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Chainlit 在 2.12.0 及更早版本中，其 PUT 和 DELETE 端点未能对反馈记录的归属权进行验证。经过身份验证的攻击者可以通过提供任意的反馈标识符，删除或修改其他用户的反馈数据，从而破坏用于模型评估的人类评分数据。
Possible ATT&CK Techniques 2 AI
T1190 · Exploit Public-Facing Application T1528 · Steal Application Access Token
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I. Basic Information for CVE-2026-82290
Vulnerability Information
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Vulnerability Title
Chainlit Feedback Endpoints Missing Ownership Validation
Source: CVE Program / CVE List V5
Vulnerability Description
Chainlit through 2.12.0 fails to validate ownership of feedback records in PUT and DELETE endpoints. Authenticated attackers can delete or modify other users' feedback by supplying arbitrary feedback identifiers, corrupting human-rating data used for model evaluation.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-82290
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2026-82290 (2)
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🔗 Chainlit Feedback Endpoints Missing Ownership Validation | Advisories | VulnCheck third-party-advisory
Other References for CVE-2026-82290 (1)
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V. Comments for CVE-2026-82290
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