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CVE-2026-82281— Kotaemon Missing Ownership Check in Conversation Functions

Quick assessment

Affected
Cinnamon kotaemon
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.

Cinnamon kotaemon是Cinnamon团队开源的一个文档协作与问答平台。 Cinnamon kotaemon 0.12.0及之前版本存在授权问题漏洞，该漏洞源于control.py文件中的select_conv、delete_conv、rename_conv和on_set_public_conversation函数未能正确验证会话所有权，导致攻击者可通过提供任意会话标识符读取其他用户的聊天记录、删除会话或重命名会话。

CVSS 7.4 · High EPSS 0.33% · P24

Affected Version Matrix 1

VendorProduct Version RangeStatus
Cinnamon kotaemon ≤ 0.12.0 affected
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I. Basic Information for CVE-2026-82281

Vulnerability Information
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Vulnerability Title
Kotaemon Missing Ownership Check in Conversation Functions
Source: CVE Program / CVE List V5
Vulnerability Description
Kotaemon through 0.12.0 fails to properly validate conversation ownership in select_conv, delete_conv, rename_conv, and on_set_public_conversation functions in control.py. Attackers can read other users' chat histories, delete conversations, or rename conversations by supplying arbitrary conversation identifiers without proper authorization checks.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/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
Vulnerability Title
Cinnamon kotaemon 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cinnamon kotaemon是Cinnamon团队开源的一个文档协作与问答平台。 Cinnamon kotaemon 0.12.0及之前版本存在授权问题漏洞，该漏洞源于control.py文件中的select_conv、delete_conv、rename_conv和on_set_public_conversation函数未能正确验证会话所有权，导致攻击者可通过提供任意会话标识符读取其他用户的聊天记录、删除会话或重命名会话。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Cinnamon kotaemon 0 ~ 0.12.0 -

II. Public POCs for CVE-2026-82281

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III. Intelligence Information for CVE-2026-82281

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Vendor Advisories for CVE-2026-82281 (1)

Proof of Concept for CVE-2026-82281 (1)

IV. Related Vulnerabilities

Same product: kotaemon
Same vendor: Cinnamon
Same weakness: CWE-639

V. Comments for CVE-2026-82281

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