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CVE-2026-59198

6.5 · MEDIUM

Pillow is a Python imaging library.

Published Jul 14, 2026CWE-125EPSS 0.31%

Overview

CVE-2026-59198 is a medium-severity vulnerability. It was published on July 14, 2026 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Pillow is a Python imaging library. From 5.2.0 until 12.3.0, Pillow's TGA RLE encoder reads past its packed row buffer when saving a mode 1 image with TGA RLE compression, allowing adjacent process heap bytes to be copied into the generated TGA file. This issue is fixed in version 12.3.0.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/python-pillow/Pillow/commit/eada3cbd7fb9963ee90673fb7b5270124a0d5f4bGitHubgithub.com/python-pillow/Pillow/pull/9709GitHubgithub.com/python-pillow/Pillow/releases/tag/12.3.0GitHubgithub.com/python-pillow/Pillow/security/advisories/GHSA-fj7v-r99m-22gqGitHubgithub.com/python-pillow/Pillow/security/advisories/GHSA-fj7v-r99m-22gq

How CyberStrike helps

Frequently asked questions

What is CVE-2026-59198?

CVE-2026-59198 is a medium-severity vulnerability. It was published on July 14, 2026 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2026-59198?

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-59198?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-59198?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-59198 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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