What is CVE-2026-58203?

CVE-2026-58203 is a medium-severity vulnerability in Pydantic Pydantic-settings, classified under Path Traversal. CVSS score: 5.3/10. Published 2026-07-06.

How severe is CVE-2026-58203?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Path Traversal in Pydantic Pydantic-settings

CVE-2026-58203

pydantic-settings provides settings management using Pydantic. From 2.12.0 until 2.14.2, NestedSecretsSettingsSource reads secret values from files in a configured secrets_dir. When secrets_nested_subdir=True, a directory entry inside secr…

Vulnerability class: Path Traversal (Directory Traversal)

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

Affected products

Pydantic Pydantic-settings — versions >= 2.12.0, < 2.14.2

Weakness classification (CWE)

CWE-22 — Path Traversal
CWE-59 — Improper Link Resolution Before File Access
CWE-400 — Uncontrolled Resource Consumption

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-58203?: CVE-2026-58203 is a medium-severity vulnerability in Pydantic Pydantic-settings, classified under Path Traversal. CVSS score: 5.3/10. Published 2026-07-06.
How severe is CVE-2026-58203?: Medium severity. CVSS v3 base score is 5.3 out of 10.