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CVE-2026-88940— knowns through 0.33.0 Arbitrary Directory Enumeration via workspace browse endpoint

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软件。 Knowns.dev Knowns 0.33.0及之前版本存在路径遍历漏洞，该漏洞源于未验证workspace browse端点中的path查询参数，可能导致远程攻击者枚举主机文件系统上的任意目录，并遍历目录结构以定位项目目录、识别进一步利用的目标。

CVSS 5.3 · Medium EPSS 0.56% · P46 Updated Sep 11, 2026

Possible ATT&CK Techniques 1 AI

T1082 · System Information Discovery

Affected Version Matrix 1

Vendor	Product	Version Range	Status
knowns-dev	knowns	`≤ 0.33.0`	affected

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I. Basic Information for CVE-2026-88940

Vulnerability Information

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Vulnerability Title

knowns through 0.33.0 Arbitrary Directory Enumeration via workspace browse endpoint

Source: CVE Program / CVE List V5

Vulnerability Description

knowns through 0.33.0 fails to validate the path query parameter in the workspace browse endpoint, allowing remote attackers to enumerate arbitrary directories on the host filesystem. Attackers can traverse the directory structure to locate project directories and identify targets for further exploitation.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Source: CVE Program / CVE List V5

Vulnerability Type

对路径名的限制不恰当(路径遍历)

Source: CVE Program / CVE List V5

Vulnerability Title

Knowns.dev Knowns 路径遍历漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

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 ~ 0.33.0	-

II. Public POCs for CVE-2026-88940

#	POC Description	Source Link	Shenlong Link

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No public POC found.

III. Intelligence Information for CVE-2026-88940

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Vendor Advisories for CVE-2026-88940 (2)

Other References for CVE-2026-88940 (1)

🔗 knowns/internal/server/routes/workspace.go at v0.33.0 · knowns-dev/knowns · GitHub Read full article technical-description

https://www.cve.org/CVERecord?id=CVE-2026-88940

Same Patch Batch · knowns-dev · 2026-09-10 · 5 CVEs total

CVE-2026-88899	9.8 CRITICAL	knowns before 0.31.0 External Control of Agent Working Directory via x-opencode-directory
CVE-2026-88937	8.8 HIGH	knowns through 0.33.0 Path Traversal via Template Engine
CVE-2026-88939	8.3 HIGH	knowns through 0.33.0 Authorization Bypass via project.set Bootstrap Exemption
CVE-2026-88938	6.5 MEDIUM	knowns through 0.33.0 Path Traversal via code.find MCP tool

IV. Related Vulnerabilities

Same product: knowns

Same vendor: knowns-dev

Same weakness: CWE-22