Open Redirect in Finsys Dockhand
CVE-2026-53989
Dockhand before 1.0.36 contains an open redirect vulnerability in the OIDC initiation endpoint that allows unauthenticated remote attackers to redirect authenticated users to attacker-controlled sites by injecting an unvalidated redirect query parameter. Attackers can craft a malicious link targeting the OIDC callback flow to capture authorization codes via the Referer header and conduct follow-up credential phishing against any Dockhand account after a legitimate login.
Vulnerability class: Open Redirect
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/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
- github.com/Finsys/dockhand/releases/tag/v1.0.36 (release-notes, patch)
- www.vulncheck.com/advisories/dockhand-open-redirect-via-oidc-initiation-endpoint (third-party-advisory)
Frequently asked questions
- What is CVE-2026-53989?
- CVE-2026-53989 is a medium-severity vulnerability in Finsys Dockhand, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 4.7/10. Published 2026-09-29.
- How severe is CVE-2026-53989?
- Medium severity. CVSS v3 base score is 4.7 out of 10.