Pillow multi-frame loaders can reuse stale native image storage after mode transitions
What to do
- Upgrade to a fixed version: Pillow 13.0.0.
- Redeploy and restart long-running processes so they load the fixed code.
Affected packages
Pillow
- >= 11.0.0, < 13.0.0
- 13.0.0
Check your project: pip show Pillow
What changed
Published in the GitHub Advisory Database as critical.