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CVE-2026-27953

Опубликовано: 19 мар. 2026
Источник: ubuntu
Приоритет: medium
CVSS3: 7.1

Описание

ormar is a async mini ORM for Python. Versions 0.23.0 and below are vulnerable to Pydantic validation bypass through the model constructor, allowing any unauthenticated user to skip all field validation by injecting "pk_only": true into a JSON request body. By injecting "pk_only": true into a JSON request body, an unauthenticated attacker can skip all field validation and persist unvalidated data directly to the database. A secondary excluded parameter injection uses the same pattern to selectively nullify arbitrary model fields (e.g., email or role) during construction. This affects ormar's canonical FastAPI integration pattern recommended in its official documentation, enabling privilege escalation, data integrity violations, and business logic bypass in any application using ormar.Model directly as a request body parameter. This issue has been fixed in version 0.23.1.

РелизСтатусПримечание
devel

needs-triage

esm-apps/noble

needs-triage

esm-apps/resolute

needs-triage

jammy

DNE

noble

needs-triage

questing

ignored

end of life, was needs-triage
resolute

needs-triage

upstream

released

0.23.1-1

Показывать по

7.1 High

CVSS3

Связанные уязвимости

CVSS3: 7.1
nvd
5 месяцев назад

ormar is a async mini ORM for Python. Versions 0.23.0 and below are vulnerable to Pydantic validation bypass through the model constructor, allowing any unauthenticated user to skip all field validation by injecting "__pk_only__": true into a JSON request body. By injecting "__pk_only__": true into a JSON request body, an unauthenticated attacker can skip all field validation and persist unvalidated data directly to the database. A secondary __excluded__ parameter injection uses the same pattern to selectively nullify arbitrary model fields (e.g., email or role) during construction. This affects ormar's canonical FastAPI integration pattern recommended in its official documentation, enabling privilege escalation, data integrity violations, and business logic bypass in any application using ormar.Model directly as a request body parameter. This issue has been fixed in version 0.23.1.

CVSS3: 7.1
debian
5 месяцев назад

ormar is a async mini ORM for Python. Versions 0.23.0 and below are vu ...

CVSS3: 7.1
github
5 месяцев назад

ormar Pydantic Validation Bypass via __pk_only__ and __excluded__ Kwargs Injection in Model Constructor

7.1 High

CVSS3