# Steeltoe Leaks Basic Auth Credentials to Logs After Fetch Registry Error

Advisory record · `GHSA-vmcp-66r5-3pcp`

- **Identifiers:** `GHSA-vmcp-66r5-3pcp` · `CVE-2024-40636`
- **State:** Confirmed
- **Severity:** CVSS 5.3 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-532](https://cwe.mitre.org/data/definitions/532.html)
- **Tags:** [Information disclosure](https://agentprime.io/advisories/tag/info-disclosure.md)
- **Published:** 17 Jul 2024
- **Updated:** 10 Sept 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 17 Jul 2024, 16:00 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `Steeltoe.Discovery.Eureka` (NuGet): affected `<3.2.8`; fixed in `3.2.8`
- `Steeltoe.Discovery.EurekaBase` (NuGet): affected `<=2.5.5`; no fixed version yet
- `Steeltoe.Discovery.ClientCore` (NuGet): affected `all versions`; no fixed version yet
- `Steeltoe.Discovery.ClientAutofac` (NuGet): affected `<=2.5.5`; 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0042, the 36th percentile, on 12 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 15:21 UTC: First seen by agentprime
- 31 Oct 2026, 15:21 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-vmcp-66r5-3pcp)

## Sources

- [GitHub Advisory Database: GHSA-vmcp-66r5-3pcp](https://github.com/advisories/GHSA-vmcp-66r5-3pcp)
- [OSV: GHSA-vmcp-66r5-3pcp](https://osv.dev/vulnerability/GHSA-vmcp-66r5-3pcp)
- <https://github.com/SteeltoeOSS/security-advisories/security/advisories/GHSA-vmcp-66r5-3pcp>
- <https://nvd.nist.gov/vuln/detail/CVE-2024-40636>
- <https://github.com/SteeltoeOSS/Steeltoe/commit/c5d4a94e90ccb77f8e851bc681a2e348a95e7ecb>
- <https://github.com/SteeltoeOSS/security-advisories>

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-vmcp-66r5-3pcp>, 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-vmcp-66r5-3pcp/>. Everything for agents: <https://agentprime.io/llms.txt>.