CVE-2025-24375: MySQL K8s charm could leak credentials for root-level user `serverconfig`

5.0 CVSS

Description

Charmed MySQL K8s operator is a Charmed Operator for running MySQL on Kubernetes. Before revision 221, the method for calling a SQL DDL or python based mysql-shell scripts can leak database users credentials. The method mysql-operator calls mysql-shell application rely on writing to a temporary script file containing the full URI, with user and password. The file can be read by a unprivileged user during the operator runtime, due it being created with read permissions (0x644). On other cases, when calling mysql cli, for one specific case when creating the operator users, the DDL contains said users credentials, which can be leak through the same mechanism of a temporary file. All versions prior to revision 221 for kubernetes and revision 338 for machine operators.

Classification

CVE ID: CVE-2025-24375

CVSS Base Severity: MEDIUM

CVSS Base Score: 5.0

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N

Problem Types

CWE-256: Plaintext Storage of a Password

Affected Products

Vendor: canonical

Product: mysql-k8s-operator

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.01% (probability of being exploited)

EPSS Percentile: 0.56% (scored less or equal to compared to others)

EPSS Date: 2025-04-21 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-24375
https://github.com/canonical/mysql-k8s-operator/security/advisories/GHSA-g83v-7694-2hf7
https://github.com/canonical/mysql-k8s-operator/pull/553
https://github.com/canonical/mysql-operator/pull/579
https://github.com/canonical/mysql-k8s-operator/commit/7c6b1206fcbc7324b72f413c5e63216e742a71a1
https://github.com/canonical/mysql-operator/commit/1fb61c1ee3e396cdce13d5e8155f2f32a860f89e

Timeline