---
id: CVE-2026-110766
title: >-
  Colanode server through 0.4.7 contains a path traversal vulnerability that
  allows authenticated users to read arbitrary .jpeg files by supplying an
  encoded traversal sequence in avatarId
summary: >-
  Colanode server through 0.4.7 contains a path traversal vulnerability that
  allows authenticated users to read arbitrary .jpeg files by supplying an
  encoded traversal sequence in avatarId. Attackers can send percent-encoded ../
  sequences …
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-22
published: '2026-10-14'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T20:17:31.693'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-110766'
references:
  - url: 'https://github.com/colanode/colanode'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/colanode/colanode/blob/d649523637f0f059c936418488165d4a689da27c/apps/server/src/api/client/routes/avatars/avatar-download.ts#L23
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/colanode/colanode/blob/d649523637f0f059c936418488165d4a689da27c/apps/server/src/lib/storage/fs.ts#L38
    label: disclosure@vulncheck.com
  - url: 'https://hackmd.io/@hieuPenguinnn/colanode-avatar-download-path-traversal'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/colanode-server-through-0.4.7-path-traversal-via-avatar-download-route
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
  - exploit-available
ingestedAt: '2026-10-14T19:49:57.610Z'
vendor: colanode
product: colanode
affected:
  - colanode <= 0.4.7
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-14T19:38:39.974504Z'
---

## Overview

Colanode server through 0.4.7 contains a path traversal vulnerability that allows authenticated users to read arbitrary .jpeg files by supplying an encoded traversal sequence in avatarId. Attackers can send percent-encoded ../ sequences to GET /client/v1/avatars/:avatarId to escape the avatars directory and read .jpeg files belonging to other workspaces.

## Remediation

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