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CVE-2026-90769— Open Notebook before 1.11.0 Server-Side Request Forgery via link-source

Quick assessment

Affected
lfnovo open-notebook
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.

版本 1.11.0 之前的 Open Notebook 在 端点中未能验证 URL 参数，使得经过身份验证的用户能够向内部服务发起服务端请求。攻击者可以通过应用服务器的直接 HTTP 请求，提供任意 URL 来读取云元数据、内部网络服务以及与本地主机绑定的服务。

CVSS 7.7 · High

Possible ATT&CK Techniques 1 AI

T1557 · Adversary-in-the-Middle

Affected Version Matrix 1

VendorProduct Version RangeStatus
lfnovo open-notebook < 1.11.0 affected
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I. Basic Information for CVE-2026-90769

Vulnerability Information
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Vulnerability Title
Open Notebook before 1.11.0 Server-Side Request Forgery via link-source
Source: CVE Program / CVE List V5
Vulnerability Description
Open Notebook before 1.11.0 fails to validate the URL parameter in POST /api/sources endpoint, allowing authenticated users to perform server-side requests to internal services. Attackers can supply arbitrary URLs to read cloud metadata, internal network services, and localhost-bound services through the application server's direct HTTP requests.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
lfnovo open-notebook 0 ~ 1.11.0 -

II. Public POCs for CVE-2026-90769

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III. Intelligence Information for CVE-2026-90769

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Patches & Fixes for CVE-2026-90769 (1)

Vendor Advisories for CVE-2026-90769 (1)

Security Blog Posts for CVE-2026-90769 (1)

Other References for CVE-2026-90769 (1)

IV. Related Vulnerabilities

Same weakness: CWE-918

V. Comments for CVE-2026-90769

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