CVE-2026-58203

Source
https://cve.org/CVERecord?id=CVE-2026-58203
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-58203.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-58203
Aliases
Downstream
CGA (10)
CLEANSTART (2)
DEBIAN (1)
MGASA (1)
UBUNTU (1)
Published
2026-07-06T14:24:15Z
Modified
2026-11-04T10:47:28Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L CVSS Calculator
Summary
NestedSecretsSettingsSource follows symlinks outside secrets_dir, enabling local file read and bypassing secrets_dir_max_size
Details

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.

Database specific
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-22",
        "CWE-400",
        "CWE-59"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/58xxx/CVE-2026-58203.json"
}
References

Affected packages

Git / github.com/pydantic/pydantic

Affected ranges

Type
GIT
Repo
https://github.com/pydantic/pydantic
Events
Database specific
Show details
{
    "extracted_events": [
        {
            "cpe": "cpe:2.3:a:pydantic:pydantic-settings:*:*:*:*:*:*:*:*",
            "range": [
                {
                    "introduced": "2.12.0"
                },
                {
                    "fixed": "2.14.2"
                }
            ],
            "source": "CPE_RANGE"
        }
    ]
}
Type
GIT
Repo
https://github.com/pydantic/pydantic-settings
Events
Database specific
Show details
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "2.12.0"
                },
                {
                    "fixed": "2.14.2"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StringRangeExpression"
        },
        {
            "cpe": "cpe:2.3:a:pydantic:pydantic-settings:*:*:*:*:*:*:*:*",
            "range": [
                {
                    "introduced": "2.12.0"
                },
                {
                    "fixed": "2.14.2"
                }
            ],
            "source": "CPE_RANGE"
        }
    ]
}

Affected versions

core-v2.*
core-v2.42.0
core-v2.43.0
core-v2.44.0
core-v2.45.0
core-v2.46.0
core-v2.48.0
core-v2.49.0
core-v2.50.0
core-v2.50.1
v2.*
v2.12.0
v2.13.0
v2.13.0b1
v2.13.0b2
v2.13.0b3
v2.13.1
v2.14.0
v2.14.0a1
v2.14.0b1
v2.14.0b2
v2.14.1

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-58203.json"