Path Traversal in Crivion Laranode
CVE-2026-100520
Laranode versions before 1.2.1 contain a path traversal vulnerability in the POST /filemanager/upload-file endpoint that allows authenticated users to write arbitrary files outside their home directory. Attackers can supply directory traversal sequences in the path parameter to write PHP files into other tenants' web roots and execute code as those tenants.
Vulnerability class: Path Traversal (Directory Traversal)
Published .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
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
- github.com/crivion/laranode (product)
- github.com/crivion/laranode/blob/v1.2/app/Actions/Filemanager/UploadFileAction… (technical-description)
- github.com/crivion/laranode/commit/5c2b18ae99caf77a6fb6cc5c0ab66562bd673424 (patch)
- github.com/crivion/laranode/pull/21 (issue-tracking, patch)
- github.com/crivion/laranode/releases/tag/v1.2.1 (release-notes)
- github.com/crivion/laranode/security/advisories/GHSA-34h2-2696-vfvr (vendor-advisory)
- www.vulncheck.com/advisories/laranode-before-1.2.1-path-traversal-in-file-manag… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-100520?
- CVE-2026-100520 is a high-severity vulnerability in Crivion Laranode, classified under Path Traversal. CVSS score: 8.8/10. Published 2026-09-26.
- How severe is CVE-2026-100520?
- High severity. CVSS v3 base score is 8.8 out of 10.