CVE-2026-58203

pydantic-settings: pydantic-settings provides settings management using Pydantic

CVE-2026-58203 is fixed in pydantic-settings on 1 platform by DEBIAN-CVE-2026-58203 (version 2.14.2-1), released July 7, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
5.3
medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0019
8th percentile

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 secrets_dir that is a symbolic link pointing outside secrets_dir is followed, so files outside the configured directory are read into settings values. The same code path bypasses the documented secrets_dir_max_size protection. An attacker or lower-privileged component able to influence entries in the configured secrets directory (for example, a writable or shared secrets mount) can turn this into an unintended local file read into settings and can defeat the advertised loading-size cap. This vulnerability is fixed in 2.14.2.

Where it's fixed

ProductFixed inFixReleased
Linux
pydantic-settings · Debian 14 2.14.2-1 DEBIAN-CVE-2026-58203 Jul 7, 2026

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