Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-110611— REBUILD through 4.5.0 Authorization Bypass via aibot2 Chat Endpoints chatid

Quick assessment

Affected
getrebuild rebuild
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.

在 REBUILD 4.5.0 及更早版本中，AiBot2Controller 的 /aibot2 端点存在一个权限绕过漏洞。这些端点在处理调用者提供的 chatid 时，未对其所有权进行验证。经认证的、权限较低的用户可以利用 chat-init、chat-delete、chat-feedback 或 chat-stream-stop 等端点，传入其他用户的 chatid，从而读取、删除、提取或中断 AI 助手的对话内容。

CVSS 5.9 · Medium EPSS 0.34% · P26

Affected Version Matrix 1

VendorProduct Version RangeStatus
getrebuild rebuild ≤ 4.5.0 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-110611

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
REBUILD through 4.5.0 Authorization Bypass via aibot2 Chat Endpoints chatid
Source: CVE Program / CVE List V5
Vulnerability Description
REBUILD through 4.5.0 contains an authorization bypass vulnerability in AiBot2Controller /aibot2 endpoints that act on a caller-supplied chatid without verifying ownership. Authenticated low-privilege users can supply another user's chatid to chat-init, chat-delete, chat-feedback, or chat-stream-stop to read, delete, exfiltrate, or interrupt AI assistant conversations.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:L/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

Vendor Product Affected Versions CPE Subscribe
getrebuild rebuild 0 ~ 4.5.0 -

II. Public POCs for CVE-2026-110611

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-110611

请登录查看更多情报信息。

Other References for CVE-2026-110611 (4)

IV. Related Vulnerabilities

Same product: rebuild
Same vendor: getrebuild
Same weakness: CWE-639

V. Comments for CVE-2026-110611

No comments yet

Leave a comment