CVE-2026-61858 ImageMagick before 7.1.2-26 Policy Bypass via APNG encoder

What is CVE-2026-61858?

CVE-2026-61858 is a medium-severity path traversal vulnerability in Imagemagick Imagemagick, published on 11 Jul 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

ImageMagick before 7.1.2-26 contains a policy bypass vulnerability in the APNG encoder and external delegates due to missing validation checks. Attackers can write files to disallowed paths by bypassing configured policy restrictions through the APNG encoding process.

Weakness: CWE-59

Which versions are affected by CVE-2026-61858?

34 open source packages ship an affected version, including Magick.NET-Q16-AnyCPU, Magick.NET-Q16-HDRI-AnyCPU and Magick.NET-Q16-HDRI-OpenMP-arm64. It affects 1 product.

Products include Imagemagick Imagemagick.

How do I fix CVE-2026-61858?

Upgrade Magick.NET-Q16-AnyCPU to 14.15.0 or later.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2026-61858 being exploited?

There is no known exploitation of CVE-2026-61858 in the wild and no public exploit code.

Other vulnerabilities in Imagemagick Imagemagick

• CVE-2019-19952 Use after free in n/a Critical 9.8
• CVE-2018-16328 Null dereference in n/a Critical 9.8
• CVE-2018-16329 Null dereference in n/a Critical 9.8
• CVE-2017-18210 Null dereference in n/a Critical 9.8
• CVE-2017-14138 Denial of service in n/a Critical 9.8

All Imagemagick Imagemagick vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2026-61858, ECHO-574f-7dd6-dd6e, GHSA-26m2-2whw-vfv9, GHSA-v3j6-27vc-7pw2, JLSEC-2026-1064, MINI-634h-jhw5-3xcx and 1 more.