CVE-2026-27798: ImageMagick is free and open-source software used for editing and manipulating digital images

Q: How do I fix CVE-2026-27798?

imagemagick: upgrade to 6.9.13-40, 7.1.2-15; magick.net: upgrade to 14.10.3. Exact commands for each OS are on this page.

Q: Is CVE-2026-27798 being exploited?

CVE-2026-27798 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-27798 affect?

CVE-2026-27798 affects imagemagick, magick.net. Severity is medium (CVSS 4.0). ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, a heap buffer over-read vulnerability occurs when processing an image with small dimension using the `-

Q: How urgent is CVE-2026-27798?

Priority 15/100. No elevated risk signals yet.

Routine

MEDIUM 4.0UPGRADEUPGRADE

CVE-2026-27798 is a medium-severity flaw (CVSS 4.0) affecting imagemagick, magick.net. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, a heap buffer over-read vulnerability occurs when processing an image with small dimension using the `-wavelet-denoise` operator. Versions 7.1.2-15 and 6.9.13-40 contain a patch.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.0 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.2% (top 95%)
CISA exploited list	No
Weakness	CWE-125, CWE-126
Published	2026-02-26
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: dlemstra · imagemagick

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-02-26 00:16 UTCPublished CVE record published
2026-06-17 10:27 UTCUpdated Record last modified

imagemagick imagemagick UPGRADE

Affected: < 6.9.13-40 · >= 7.0.0-0 and < 7.1.2-15

Fixed in: 6.9.13-40, 7.1.2-15

Safe to downgrade to: a release before 7.0.0-0

1. Check installed version

apt-cache policy imagemagick || rpm -q imagemagick || imagemagick --version

2. UPGRADE to 6.9.13-40 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade imagemagick

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade imagemagick

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 7.0.0-0 (Debian / Ubuntu)

apt-cache madison imagemagick sudo apt install imagemagick=<VERSION_BEFORE_7.0.0-0> sudo apt-mark hold imagemagick

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list imagemagick sudo dnf downgrade imagemagick-<VERSION_BEFORE_7.0.0-0> sudo dnf versionlock add imagemagick

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

dlemstra magick.net UPGRADE

Affected: < 14.10.3

Fixed in: 14.10.3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy magick.net || rpm -q magick.net || magick.net --version

2. UPGRADE to 14.10.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade magick.net

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade magick.net

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-27798?

imagemagick: upgrade to 6.9.13-40, 7.1.2-15; magick.net: upgrade to 14.10.3. Exact commands for each OS are on this page.

Is CVE-2026-27798 being exploited?

CVE-2026-27798 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-27798 affect?

CVE-2026-27798 affects imagemagick, magick.net. Severity is medium (CVSS 4.0). ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, a heap buffer over-read vulnerability occurs when processing an image with small dimension using the `-

How urgent is CVE-2026-27798?

Priority 15/100. No elevated risk signals yet.

Software pages

ImageMagick vulnerabilities

Related CVEs

CVE-2026-93589 LOW 3.7 UPGRADE ImageMagick before 7.1.2-31 and 6.9.13-56 contains a division-by-zero flaw in the FLIF encoder
CVE-2026-93588 LOW 3.1 UPGRADE ImageMagick before 7.1.2-31 and before 6.9.13-56 contains a NULL pointer dereference in the PNM coder
CVE-2026-93587 LOW 3.3 UPGRADE ImageMagick before 7.1.2-31 and before 6.9.13-56 contains a policy bypass in the PCD (and, per the upstream ad
CVE-2026-93586 LOW 2.9 UPGRADE ImageMagick before 7.1.2-31 and before 6.9.13-56 contains a use-after-free vulnerability in the ImagesToBlob m
CVE-2026-86425 LOW 3.3 UPGRADE ImageMagick before 7.1.2-30 and 6.9.x before 6.9.13-55 contains a heap-use-after-free vulnerability in the Lay

References

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