Path Traversal in Finsys Dockhand
CVE-2026-121448
Dockhand before 1.0.54 contains a path traversal vulnerability that allows authenticated users to read, overwrite, and delete .env files outside the stacks root by double-encoding the stack name. Attackers can send %252e%252e sequences to /api/stacks/[name]/env/raw to disclose cross-environment secrets, write into protected directories, or poison deployment variables.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L.
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/Finsys/dockhand/security/advisories/GHSA-q2vc-4qcx-2vm6 (vendor-advisory)
- www.vulncheck.com/advisories/dockhand-before-1.0.54-path-traversal-via-stack-en… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-121448?
- CVE-2026-121448 is a high-severity vulnerability in Finsys Dockhand, classified under Path Traversal. CVSS score: 8.3/10. Published 2026-11-03.
- How severe is CVE-2026-121448?
- High severity. CVSS v3 base score is 8.3 out of 10.