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

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-86544— knowns before 0.30.0 Authorization Bypass via Misclassified Code Actions

Quick assessment

Affected
knowns-dev knowns
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.

Knowns.dev Knowns是Knowns.dev组织的一款知识管理应用。 Knowns.dev Knowns 0.30.0之前版本存在授权问题漏洞，该漏洞源于将可变代码操作错误分类为只读操作，导致授权绕过，具有只读受限会话的攻击者可利用code.replace修改权限配置并在后续调用中提升权限。

CVSS 8.1 · High EPSS 0.58% · P47

Affected Version Matrix 2

VendorProduct Version RangeStatus
knowns-dev knowns < 0.30.0 affected
0.30.0 unaffected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-86544

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
knowns before 0.30.0 Authorization Bypass via Misclassified Code Actions
Source: CVE Program / CVE List V5
Vulnerability Description
knowns versions before 0.30.0 contain an authorization bypass vulnerability where mutating code actions are incorrectly classified as read-only operations. Attackers with read-restricted sessions can exploit code.replace to modify permission configurations and escalate privileges on subsequent calls.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
Knowns.dev Knowns 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Knowns.dev Knowns是Knowns.dev组织的一款知识管理应用。 Knowns.dev Knowns 0.30.0之前版本存在授权问题漏洞，该漏洞源于将可变代码操作错误分类为只读操作，导致授权绕过，具有只读受限会话的攻击者可利用code.replace修改权限配置并在后续调用中提升权限。
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
knowns-dev knowns 0 ~ 0.30.0 -

II. Public POCs for CVE-2026-86544

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

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-86544

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-86544 (3)

Vendor Advisories for CVE-2026-86544 (2)

Vendor Pages for CVE-2026-86544 (1)

Same Patch Batch · knowns-dev · 2026-09-07 · 8 CVEs total

CVE-2026-86543 9.8 CRITICAL knowns before 0.30.0 Unauthenticated Management API Exposure
CVE-2026-86542 9.1 CRITICAL knowns before 0.30.0 Path Traversal via Import Name
CVE-2026-86439 8.8 HIGH knowns before 0.30.0 Path Traversal via MCP doc and memory tools
CVE-2026-86541 8.3 HIGH knowns before 0.30.0 Path Traversal via code.replace MCP action
CVE-2026-86540 7.8 HIGH knowns before 0.30.0 Arbitrary Code Execution via LSP Binary
CVE-2026-86538 7.5 HIGH knowns before 0.30.0 Path Traversal via templateFile parameter
CVE-2026-86539 7.2 HIGH knowns through 0.33.0 Server-Side Request Forgery via embedding-models endpoint

IV. Related Vulnerabilities

Same product: knowns
Same vendor: knowns-dev
Same weakness: CWE-863

V. Comments for CVE-2026-86544

No comments yet

Leave a comment