# resdata (PyPI) vulnerabilities

1 known vulnerability (1 critical), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: 6.3.6 (Nov 3, 2026): no advisory affects it
- Newest unaffected release: 6.3.6 (Nov 3, 2026), the latest release
- Weekly downloads: 7,336
- Dependents: 12
- Releases: 44 since 3.0.1 (Nov 7, 2023)
- Registry: https://pypi.org/project/resdata/
- Releases read: Nov 8, 2026

## Version timeline

Affected versions per advisory, in version order:

- CVE-2026-55209: 3.0.1 to 6.2.8 (6.2.9 is outside it)

## Advisories (1)

### [CVE-2026-55209](https://cve.now/CVE-2026-55209): resdata insufficiently validates untrusted GRDECL files

- Severity: Critical 9.8
- Published: Sep 14, 2026
- Affected: fixed in 6.2.9.
- Fixed in 6.2.9 (released May 18, 2026, 119 days before disclosure).
- The latest release, 6.3.6, is not affected.

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