What is CVE-2026-56376?

CVE-2026-56376 is a low-severity vulnerability in Imagemagick, classified under Use After Free. CVSS score: 3.7/10. Published 2026-06-23.

How severe is CVE-2026-56376?

Low severity. CVSS v3 base score is 3.7 out of 10.

Use After Free in Imagemagick

CVE-2026-56376

ImageMagick before 7.1.2-15 and 6.9.13-40 contains a heap use-after-free in the meta coder: when memory allocation fails, a single byte is written to a stale pointer. Remote attackers can trigger it by processing specially crafted image fi…

Vulnerability class: Use-After-Free

CVSS v3 metric

CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Imagemagick — versions 0, 7.1.2-15, 6.9.13-40

Weakness classification (CWE)

CWE-416 — Use After Free

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-56376?: CVE-2026-56376 is a low-severity vulnerability in Imagemagick, classified under Use After Free. CVSS score: 3.7/10. Published 2026-06-23.
How severe is CVE-2026-56376?: Low severity. CVSS v3 base score is 3.7 out of 10.