JLSEC-2026-892

A heap-based-buffer-over-read flaw was found in ImageMagick's GetPixelAlpha function of 'pixel-accessor.h'. This vulnerability is triggered when an attacker passes a specially crafted Tagged Image File Format TIFF image to convert it into a PICON file format. This issue can potentially lead to a...

JLSEC-2026-919 imagemagick: heap-buffer overflow read in MNG magnification with alpha

Vulnerability Details When performing image magnification in ReadOneMNGIMage in coders/png.c, there is an issue around the handling of images with separate alpha channels. When loading an image with a color type that implies a separate alpha channel ie. jngcolortype = 12, we will load the alpha...

JLSEC-2026-858

In GammaImage of /MagickCore/enhance.c, depending on the gamma value, it's possible to trigger a divide-by-zero condition when a crafted input file is processed by ImageMagick. This could lead to an impact to application availability. The patch uses the PerceptibleReciprocal to prevent the...

JLSEC-2026-1052 ImageMagick before 7.1.2-15 and 6.9.13-40 contains a memory leak in coders/txt.c when processing...

ImageMagick before 7.1.2-15 and 6.9.13-40 contains a memory leak in coders/txt.c when processing TXT files with texture attributes: the texture object allocated via ReadImage is not released when GetTypeMetrics fails, leaking memory each time a crafted TXT file with a texture attribute is process...

JLSEC-2026-851

There are several memory leaks in the MIFF coder in /coders/miff.c due to improper image depth values, which can be triggered by a specially crafted input file. These leaks could potentially lead to an impact to application availability or cause a denial of service. It was originally reported tha...

JLSEC-2026-859

WritePALMImage in /coders/palm.c used sizet casts in several areas of a calculation which could lead to values outside the range of representable type unsigned long undefined behavior when a crafted input file was processed by ImageMagick. The patch casts to ssizet instead to avoid this issue. Re...

JLSEC-2026-1019 ImageMagick: Race Condition in distributed pixel cache server can result in file descriptor hijacking

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-48 and 7.1.2-23, an attacker who can connect to a magick -distribute-cache service can hijack a file descriptor in the server process when a race condition is met. This issue ha...

JLSEC-2026-914 In MIFF image processing in ImageMagick before 7.1.1-44, image depth is mishandled after...

In MIFF image processing in ImageMagick before 7.1.1-44, image depth is mishandled after SetQuantumFormat is used...

JLSEC-2026-1056 ImageMagick through 7.1.2-18 contains a memory leak vulnerability in the ASHLAR coder when an...

ImageMagick through 7.1.2-18 contains a memory leak vulnerability in the ASHLAR coder when an action fails. Attackers can trigger failed actions to exhaust memory resources and cause denial of service...

JLSEC-2026-1010 ImageMagick: Heap Buffer Over-Read of a 4 bytes in distort operation.

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-47 and 7.1.2-22, when performing a polynomial distortion an out of bounds over-read of 24 bytes can occur when specifying specific arguments. This issue has been patched in...

JLSEC-2026-962 ImageMagick has heap buffer overflow in YUV 4:2:2 decoder

A heap buffer overflow write vulnerability exists in ReadYUVImage coders/yuv.c when processing malicious YUV 4:2:2 NoInterlace images. The pixel-pair loop writes one pixel beyond the allocated row buffer. ================================================================= ==204642==ERROR:...

JLSEC-2026-840

A call to ConformPixelInfo in the SetImageAlphaChannel routine of /MagickCore/channel.c caused a subsequent heap-use-after-free or heap-buffer-overflow READ when GetPixelRed or GetPixelBlue was called. This could occur if an attacker is able to submit a malicious image file to be processed by...

JLSEC-2026-1061 ImageMagick before 7.1.2-26 and 6.9.13-51 contains a heap-based buffer over-write vulnerability...

ImageMagick before 7.1.2-26 and 6.9.13-51 contains a heap-based buffer over-write vulnerability that occurs when running an X11 import with a crafted window title, which can result in heap memory corruption and denial of service...

JLSEC-2026-846

In the CropImage and CropImageToTiles routines of MagickCore/transform.c, rounding calculations performed on unconstrained pixel offsets was causing undefined behavior in the form of integer overflow and out-of-range values as reported by UndefinedBehaviorSanitizer. Such issues could cause a...

JLSEC-2026-992 ImageMagick has an Out-of-bounds Write via InterpretImageFilename

Due to an incorrect return value on certain platforms a pointer is incremented past the end of a buffer that is on the stack and that could result in an out of bounds write. ================================================================= ==48558==ERROR: AddressSanitizer: stack-buffer-overflow o...

JLSEC-2026-1009 ImageMagick: Out-of-Bounds Read in connected components when the user supplies an invalid keep-top define

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-48 and 7.1.2-22, an invalid connected-components:keep-top value could result in a heap buffer over-read when performing the connected components operation. This issue has been...

JLSEC-2026-1074 ImageMagick before 7.1.2-26 and 6.9.x before 6.9.13-51 contains a memory leak in the YUV decoder...

ImageMagick before 7.1.2-26 and 6.9.x before 6.9.13-51 contains a memory leak in the YUV decoder that occurs when opening of the blob fails. Repeated triggering can lead to resource exhaustion denial of service...

JLSEC-2026-886

A flaw was found in ImageMagick in versions before 7.0.11, where a division by zero in sRGBTransformImage in the MagickCore/colorspace.c may trigger undefined behavior via a crafted image file that is submitted by an attacker processed by an application using ImageMagick. The highest threat from...

JLSEC-2026-998

ImageMagick is free and open-source software used for editing and manipulating digital images. In versions below both 7.1.2-19 and 6.9.13-44, Magick frees the memory of the XML tree via the DestroyXMLTree function; however, this process is executed recursively with no depth limit imposed. When...

JLSEC-2026-865

A flaw was found in ImageMagick in MagickCore/quantum.h. An attacker who submits a crafted file that is processed by ImageMagick could trigger undefined behavior in the form of values outside the range of types float and unsigned char. This would most likely lead to an impact to application...