# MariaDB has Cleartext Transmission of Sensitive Information and Insufficiently Protected Credentials

Advisory record · `GHSA-42r5-vhpq-m858`

- **Identifiers:** `GHSA-42r5-vhpq-m858` · `BIT-mariadb-2026-55854` · `BIT-mariadb-min-2026-55854` · `BIT-mysql-client-2026-55854` · `CVE-2026-55854`
- **State:** Confirmed
- **Severity:** CVSS 5.9 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-319](https://cwe.mitre.org/data/definitions/319.html) · [CWE-522](https://cwe.mitre.org/data/definitions/522.html)
- **Tags:** [Weak cryptography or TLS](https://agentprime.io/advisories/tag/weak-crypto.md) · [Hard-coded credentials](https://agentprime.io/advisories/tag/hard-coded-credentials.md)
- **Published:** 28 Aug 2026
- **Updated:** 2 Sept 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 28 Aug 2026, 22:04 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `mariadb` (npm): affected `<3.2.4 || >=3.3.0, <3.3.3 || >=3.4.0, <3.4.6 || >=3.5.0, <3.5.3`; fixed in `3.2.4`, `3.3.3`, `3.4.6`, `3.5.3`

## 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0042, the 36th percentile, on 8 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the GitHub Advisory Database, published 28 Aug 2026. New records show when each source confirmed them.

## Sources

- [GitHub Advisory Database: GHSA-42r5-vhpq-m858](https://github.com/advisories/GHSA-42r5-vhpq-m858)
- [OSV: GHSA-42r5-vhpq-m858](https://osv.dev/vulnerability/GHSA-42r5-vhpq-m858)
- <https://github.com/mariadb-corporation/mariadb-connector-nodejs/security/advisories/GHSA-42r5-vhpq-m858>
- <https://github.com/mariadb-corporation/mariadb-connector-nodejs/commit/29733403cfe6519cdfe9c36c93765a468fbe285d>
- <https://github.com/mariadb-corporation/mariadb-connector-nodejs/commit/53b304264df84496d331dba2765c3634602f342e>
- <https://github.com/mariadb-corporation/mariadb-connector-nodejs/commit/9781de636841d34afdd08d81dd07d43edb82f85c>
- <https://github.com/mariadb-corporation/mariadb-connector-nodejs/commit/fbc159c2c8bd18c2db2d2e6587ab3020bbda64b6>
- <https://github.com/mariadb-corporation/mariadb-connector-nodejs>
- <https://github.com/mariadb-corporation/mariadb-connector-nodejs/releases/tag/3.2.4>
- <https://github.com/mariadb-corporation/mariadb-connector-nodejs/releases/tag/3.3.3>
- <https://github.com/mariadb-corporation/mariadb-connector-nodejs/releases/tag/3.4.6>
- <https://github.com/mariadb-corporation/mariadb-connector-nodejs/releases/tag/3.5.3>
- <https://jira.mariadb.org/browse/CONJS-353>

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-42r5-vhpq-m858>, 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-42r5-vhpq-m858/>. Everything for agents: <https://agentprime.io/llms.txt>.