Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
The mariadb npm package, versions 3.3.0 up to but not including 3.5.4, crashes its Node.js client during ed25519 authentication over zero-configuration TLS without a supplied CA. An attacker who can intercept the connection, or a compromised server, can trigger an uncaught exception that terminates the client process. Upgrade to mariadb 3.5.4 or later; the 3.3.x and 3.4.x branches are not patched.
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
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 5.9 | Medium | 3.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0024, the 14th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 13:33 UTC First seen by agentprime
- 31 Oct 2026, 13:33 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-cx2f-j9fh-8g68
- OSV: GHSA-cx2f-j9fh-8g68
- github.com/mariadb-corporation/mariadb-connector-nodejs/security/advisories/GHSA-cx2f-j9fh-8g68
- github.com/mariadb-corporation/mariadb-connector-nodejs/commit/784ca3d757194a05f202d84b0c762321e76a7915
- github.com/mariadb-corporation/mariadb-connector-nodejs
- github.com/mariadb-corporation/mariadb-connector-nodejs/releases/tag/3.5.4
- jira.mariadb.org/browse/CONJS-356