There are 3 open security issues in bullseye.
2 issues left for the package maintainer to handle:
The package pillow 5.2.0 and before 8.3.2 are vulnerable to Regular Expression Denial of Service (ReDoS) via the getrgb function.
Pillow before 9.2.0 performs Improper Handling of Highly Compressed GIF Data (Data Amplification).
You can find information about how to handle these issues in the security team's documentation.
1 ignored issue:
Pillow before 9.0.1 allows attackers to delete files because spaces in temporary pathnames are mishandled.