---
title: "CVE-2026-86775: knowns - Path Traversal"
description: "knowns (npm package) <= 0.29.1 contains a path traversal vulnerability caused by improper sanitization of document paths in the Document API, letting remote unauthenticated attackers read, write, or delete arbitrary .md files, exploit requires unauthenticated access to Management API."
url: https://panop.io/threat-heartbeat/CVE-2026-86775/
---

# CVE-2026-86775 knowns - Path Traversal

knowns (npm package) <= 0.29.1 contains a path traversal vulnerability caused by improper sanitization of document paths in the Document API, letting remote unauthenticated attackers read, write, or delete arbitrary .md files, exploit requires unauthenticated access to Management API.

CVSS base score 8.6 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.75% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-86775)

## Details

Type

Path Traversal

Impact

File System Read, File System Write, Information Disclosure

CVSS vector

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

Published

9 September 2026

Updated

15 October 2026

Weakness

[CWE-22](https://cwe.mitre.org/data/definitions/22.html)

## Vendor fix

Update to version 0.30.0 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-86775](https://nvd.nist.gov/vuln/detail/CVE-2026-86775)
- [https://github.com/knowns-dev/knowns/security/advisories/GHSA-3h35-4jq7-hv45](https://github.com/knowns-dev/knowns/security/advisories/GHSA-3h35-4jq7-hv45)
- [https://www.vulncheck.com/advisories/knowns-before-0.30.0-path-traversal-via-document-api](https://www.vulncheck.com/advisories/knowns-before-0.30.0-path-traversal-via-document-api)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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