CVE-2026-58203

Description

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.

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Produits concernés

• pydantic-settings
• Pydantic pydantic-settings

Scores CVSS

Faiblesses (CWE)

• CWE-22
• CWE-59
• CWE-400

Références

• https://github.com/pydantic/pydantic-settings/security/advisories/GHSA-4xgf-cpjx-pc3j ExploitMitigationVendor Advisory
• https://github.com/pydantic/pydantic-settings/security/advisories/GHSA-4xgf-cpjx-pc3j ExploitMitigationVendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories