# CVE-2026-56365: imagemagick: ImageMagick before 7.1.2-19 contains a memory leak vulnerability in the PNG encoder when writing MNG images

CVE-2026-56365 is fixed in 13 products on 1 platform, first by DEBIAN-CVE-2026-56365, released July 1, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-56365
- Priority: Routine
- CVSS: 5.3 (medium)
- EPSS: 0.0028
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 30, 2026

## Description

ImageMagick before 7.1.2-19 contains a memory leak vulnerability in the PNG encoder when writing MNG images. Attackers can trigger the encoder failure condition to exhaust memory resources and cause denial of service.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | ImageMagick amzn 2023 | 1:6.9.13.54-1.amzn2023 | [ALAS2023-2026-3115](https://patchblox.com/security/data/fix/linux/alas2023-2026-3115.md) | Sep 28, 2026 |
| Linux | ImageMagick opensuse-leap 16.0 | 7.1.2.0-160000.14.1 | [OPENSUSE-SU-2026:21635-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21635-1.md) | Aug 24, 2026 |
| Linux | ImageMagick sles 15.6 | 7.1.0.9-150400.6.96.1 | [SUSE-SU-2026:3053-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3053-1.md) | Jul 15, 2026 |
| Linux | ImageMagick sles 15.7 | 7.1.0.9-150400.6.96.1 | [SUSE-SU-2026:3053-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3053-1.md) | Jul 15, 2026 |
| Linux | ImageMagick sles 16.0 | 7.1.2.0-160000.14.1 | [SUSE-SU-2026:23312-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-23312-1.md) | Aug 24, 2026 |
| Linux | ImageMagick-c++ amzn 2023 | 1:6.9.13.54-1.amzn2023 | [ALAS2023-2026-3115](https://patchblox.com/security/data/fix/linux/alas2023-2026-3115.md) | Sep 28, 2026 |
| Linux | ImageMagick-c++-debuginfo amzn 2023 | 1:6.9.13.54-1.amzn2023 | [ALAS2023-2026-3115](https://patchblox.com/security/data/fix/linux/alas2023-2026-3115.md) | Sep 28, 2026 |
| Linux | ImageMagick-c++-devel amzn 2023 | 1:6.9.13.54-1.amzn2023 | [ALAS2023-2026-3115](https://patchblox.com/security/data/fix/linux/alas2023-2026-3115.md) | Sep 28, 2026 |
| Linux | ImageMagick-debuginfo amzn 2023 | 1:6.9.13.54-1.amzn2023 | [ALAS2023-2026-3115](https://patchblox.com/security/data/fix/linux/alas2023-2026-3115.md) | Sep 28, 2026 |
| Linux | ImageMagick-debugsource amzn 2023 | 1:6.9.13.54-1.amzn2023 | [ALAS2023-2026-3115](https://patchblox.com/security/data/fix/linux/alas2023-2026-3115.md) | Sep 28, 2026 |
| Linux | ImageMagick-devel amzn 2023 | 1:6.9.13.54-1.amzn2023 | [ALAS2023-2026-3115](https://patchblox.com/security/data/fix/linux/alas2023-2026-3115.md) | Sep 28, 2026 |
| Linux | ImageMagick-doc amzn 2023 | 1:6.9.13.54-1.amzn2023 | [ALAS2023-2026-3115](https://patchblox.com/security/data/fix/linux/alas2023-2026-3115.md) | Sep 28, 2026 |
| Linux | ImageMagick-libs amzn 2023 | 1:6.9.13.54-1.amzn2023 | [ALAS2023-2026-3115](https://patchblox.com/security/data/fix/linux/alas2023-2026-3115.md) | Sep 28, 2026 |
| Linux | ImageMagick-libs-debuginfo amzn 2023 | 1:6.9.13.54-1.amzn2023 | [ALAS2023-2026-3115](https://patchblox.com/security/data/fix/linux/alas2023-2026-3115.md) | Sep 28, 2026 |
| Linux | ImageMagick-perl amzn 2023 | 1:6.9.13.54-1.amzn2023 | [ALAS2023-2026-3115](https://patchblox.com/security/data/fix/linux/alas2023-2026-3115.md) | Sep 28, 2026 |
| Linux | ImageMagick-perl-debuginfo amzn 2023 | 1:6.9.13.54-1.amzn2023 | [ALAS2023-2026-3115](https://patchblox.com/security/data/fix/linux/alas2023-2026-3115.md) | Sep 28, 2026 |
| Linux | imagemagick Debian 12.15 (bookworm) | 8:6.9.11.60+dfsg-1.6+deb12u12 | [DEBIAN-CVE-2026-56365](https://patchblox.com/security/data/fix/linux/debian-cve-2026-56365.md) | Jul 1, 2026 |
| Linux | imagemagick Debian 13.5 (trixie) | 8:7.1.1.43+dfsg1-1+deb13u11 | [DEBIAN-CVE-2026-56365](https://patchblox.com/security/data/fix/linux/debian-cve-2026-56365.md) | Jul 1, 2026 |
| Linux | imagemagick Debian 14 | 8:7.1.2.19+dfsg1-1 | [DEBIAN-CVE-2026-56365](https://patchblox.com/security/data/fix/linux/debian-cve-2026-56365.md) | Jul 1, 2026 |

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Data as of 2026-11-09T07:25:28Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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