---
id: CVE-2026-88939
title: >-
  knowns through 0.33.0 exempts the project.set action from permission guard
  checks unconditionally, allowing read-only agent sessions to bypass
  restrictions
summary: >-
  knowns through 0.33.0 exempts the project.set action from permission guard
  checks unconditionally, allowing read-only agent sessions to bypass
  restrictions. Attackers can invoke project.set to repoint the server at
  another project direct…
severity: high
cvss: 8.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L'
cwe:
  - CWE-863
vendor: knowns-dev
product: knowns
affected:
  - knowns <= 0.33.0
published: '2026-09-10'
updated: '2026-09-15'
sourceUpdated: '2026-09-15T15:17:26.583'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-88939'
references:
  - url: >-
      https://github.com/knowns-dev/knowns/blob/v0.33.0/internal/permissions/guard.go#L104-L113
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/knowns-dev/knowns/blob/v0.33.0/internal/permissions/registry.go#L51-L54
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/knowns-dev/knowns/security/advisories/GHSA-h73x-698r-qrvg
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/knowns-through-0.33.0-authorization-bypass-via-project-set-bootstrap-exemption
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/knowns-dev/knowns/security/advisories/GHSA-h73x-698r-qrvg
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-15T14:38:59.197126Z'
epss: 0.00478
epssPercentile: 0.38811
ingestedAt: '2026-09-11T16:45:47.922Z'
---

## Overview

knowns through 0.33.0 exempts the project.set action from permission guard checks unconditionally, allowing read-only agent sessions to bypass restrictions. Attackers can invoke project.set to repoint the server at another project directory and obtain write access capabilities.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.