CVE-2026-59205
HIGHCVSS v3
7.5
HIGH
EPSS Score
—
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
Pillow is a Python imaging library. Prior to 12.3.0, Pillow's ImageCms.ImageCmsTransform.apply(im, imOut) API can trigger controlled native heap corruption when the caller supplies an output image whose mode does not match the transform's declared output mode. This issue is fixed in version 12.3.0.
Technical Details
- CVSS v3 Vector
- 3.1
- Published
- 7/14/2026
- Last Modified
- 7/14/2026
Frequently Asked Questions
What is CVE-2026-59205?
Pillow is a Python imaging library. Prior to 12.3.0, Pillow's ImageCms.ImageCmsTransform.apply(im, imOut) API can trigger controlled native heap corruption when the caller supplies an output image whose mode does not match the transform's declared output mode. This issue is fixed in version 12.3.0.
Is CVE-2026-59205 actively exploited?
Active exploitation of CVE-2026-59205 has not been confirmed. The EPSS score is N/A%, indicating the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2026-59205?
CVE-2026-59205 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string 3.1.
Is CVE-2026-59205 affecting your environment?
Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.