Path Traversal in Colanode
CVE-2026-110766
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.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- hackmd.io/@hieuPenguinnn/colanode-avatar-download-path-traversal (technical-description, exploit)
- github.com/colanode/colanode/blob/d649523637f0f059c936418488165d4a689da27c/apps… (technical-description)
- github.com/colanode/colanode/blob/d649523637f0f059c936418488165d4a689da27c/apps… (technical-description)
- github.com/colanode/colanode (product)
- www.vulncheck.com/advisories/colanode-server-through-0.4.7-path-traversal-via-a… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-110766?
- CVE-2026-110766 is a medium-severity vulnerability in Colanode, classified under Path Traversal. CVSS score: 4.3/10. Published 2026-10-14.
- How severe is CVE-2026-110766?
- Medium severity. CVSS v3 base score is 4.3 out of 10.