# Docker: Race condition in docker cp allows creation of arbitrary empty files on the host via symlink swap

Advisory record · `GHSA-vp62-88p7-qqf5`

- **Identifiers:** `GHSA-vp62-88p7-qqf5` · `CVE-2026-41568` · `GO-2026-5668`
- **State:** Confirmed
- **Severity:** CVSS 6.1 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-61](https://cwe.mitre.org/data/definitions/61.html) · [CWE-81](https://cwe.mitre.org/data/definitions/81.html) · [CWE-367](https://cwe.mitre.org/data/definitions/367.html)
- **Tags:** [Race condition](https://agentprime.io/advisories/tag/race-condition.md) · [CWE-61](https://agentprime.io/advisories/tag/cwe-61.md) · [CWE-81](https://agentprime.io/advisories/tag/cwe-81.md)
- **Published:** 18 May 2026
- **Updated:** 10 Sept 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 18 May 2026, 17:52 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `github.com/docker/docker` (Go): affected `<=28.5.2`; no fixed version yet
- `github.com/moby/moby/v2` (Go): affected `<2.0.0-beta.14`; fixed in `2.0.0-beta.14`
- `github.com/moby/moby` (Go): affected `<=28.5.2`; no fixed version yet

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 6.1 Medium, CVSS 3.1: `CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:N/I:L/A:H`, from CNA (GitHub_M)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0011, the 1st percentile, on 7 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 14:13 UTC: First seen by agentprime
- 31 Oct 2026, 14:13 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-vp62-88p7-qqf5)

## Sources

- [GitHub Advisory Database: GHSA-vp62-88p7-qqf5](https://github.com/advisories/GHSA-vp62-88p7-qqf5)
- [OSV: GHSA-vp62-88p7-qqf5](https://osv.dev/vulnerability/GHSA-vp62-88p7-qqf5)
- <https://github.com/moby/moby/security/advisories/GHSA-vp62-88p7-qqf5>
- <https://nvd.nist.gov/vuln/detail/CVE-2026-41568>
- <https://github.com/moby/moby>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-vp62-88p7-qqf5>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-vp62-88p7-qqf5/>. Everything for agents: <https://agentprime.io/llms.txt>.