PatchTheCVECVE-2026-27953: ormar is a async mini ORM for Python
CVE-2026-27953 is a high-severity flaw (CVSS 7.1) affecting ormar. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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 __ex
Why this priority
- High severity
- Public exploit reference
A fixed release or distro patch exists.
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-27953?
ormar: upgrade to 0.23.1. Exact commands for each OS are on this page.
Is CVE-2026-27953 being exploited?
CVE-2026-27953 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-27953 affect?
CVE-2026-27953 affects ormar. Severity is high (CVSS 7.1). 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
How urgent is CVE-2026-27953?
Priority 47/100. High severity; Public exploit reference
Software pages
Related CVEs
- CVE-2026-26198 CRITICAL 9.8 UPGRADE Ormar is a async mini ORM for Python