What is CVE-2026-55597?

CVE-2026-55597 is a medium-severity vulnerability in Imagemagick, classified under Incorrect Calculation. CVSS score: 5.5/10. Published 2026-07-01.

How severe is CVE-2026-55597?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Buffer overflow in Imagemagick

CVE-2026-55597

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to version 7.1.2-26, an incorrect handling of arguments can cause a heap buffer over-write in the JP2 encoder. This issue has been fixed i…

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Imagemagick — versions < 7.1.2-26

Weakness classification (CWE)

CWE-682 — Incorrect Calculation
CWE-787 — Out-of-bounds Write

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-55597?: CVE-2026-55597 is a medium-severity vulnerability in Imagemagick, classified under Incorrect Calculation. CVSS score: 5.5/10. Published 2026-07-01.
How severe is CVE-2026-55597?: Medium severity. CVSS v3 base score is 5.5 out of 10.