CVE-2026-56361

Publication date 30 June 2026

Last updated 24 September 2026

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

3.3 · Low

Score breakdown

Description

ImageMagick before 7.1.2-19 contains an off-by-one error in morphology validation allowing out-of-bounds heap buffer reads. Attackers can trigger heap buffer overflow by providing incorrect morphology parameters causing single pixel memory access violations.

Status

Package Ubuntu Release Status
imagemagick 26.04 LTS resolute
Fixed 8:7.1.2.18+dfsg1-1ubuntu0.1~esm3
25.10 questing Ignored end of life, was needs-triage
24.04 LTS noble
Fixed 8:6.9.12.98+dfsg1-5.2ubuntu0.1~esm14
22.04 LTS jammy
Fixed 8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm15
20.04 LTS focal
Fixed 8:6.9.10.23+dfsg-2.1ubuntu11.11+esm15
18.04 LTS bionic
Fixed 8:6.9.7.4+dfsg-16ubuntu6.15+esm17
16.04 LTS xenial
Fixed 8:6.8.9.9-7ubuntu5.16+esm25
14.04 LTS trusty
Fixed 8:6.7.7.10-6ubuntu3.13+esm26

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
imagemagick

Severity score breakdown

CVSS version:

Base score 4.8 · Medium

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Base score 3.3 · Low

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

References

Related Ubuntu Security Notices (USN)

    • USN-8810-1
    • ImageMagick vulnerabilities
    • 24 September 2026

Other references

Access our resources on patching vulnerabilities