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-2026-1012 ImageMagick: Heap Buffer Over-Write in IPL decoder when reading multiple images of different dimensions

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, when reading multiple images with different dimensions an out of bounds heap write can occur. This issue has been patched in versions 6.9.13-48 and 7.1.2-23...

JLSEC-2026-1048 ImageMagick before 7.1.2-15 and 6.9.x before 6.9.13-40 contains an integer overflow in the PSB ...

ImageMagick before 7.1.2-15 and 6.9.x before 6.9.13-40 contains an integer overflow in the PSB PSD v2 RLE decoding path ReadPSDChannelRLE in coders/psd.c that causes a heap out-of-bounds read on 32-bit builds. Processing a crafted PSB file can lead to information disclosure or a crash...

JLSEC-2026-928 ImageMagick CLAHE : Unsigned underflow and division-by-zero lead to OOB pointer arithmetic and process crash (DoS)

Summary A single root cause in the CLAHE implementation — tile width/height becoming zero — produces two distinct but related unsafe behaviors. Vulnerabilities exists in the CLAHEImage function of ImageMagick’s MagickCore/enhance.c. 1. Unsigned integer underflow → out-of-bounds pointer arithmetic...

JLSEC-2026-1058 ImageMagick before 7.1.2-24 contains an incorrect policy check that allows attackers to create or...

ImageMagick before 7.1.2-24 contains an incorrect policy check that allows attackers to create or truncate files disallowed by security policies. Remote attackers can bypass path policy restrictions in sandboxed conversion services to write arbitrary files outside intended boundaries...

JLSEC-2026-848

A flaw was found in ImageMagick in MagickCore/colorspace-private.h and 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 type unsigned char and math division by zero. This would...

JLSEC-2026-922 ImageMagick has Undefined Behavior (function-type-mismatch) in CloneSplayTree

Summary - Target: ImageMagick commit ecc9a5eb456747374bae8e07038ba10b3d8821b3 - Type: Undefined Behavior function-type-mismatch in splay tree cloning callback - Impact: Deterministic abort under UBSan DoS in sanitizer builds. No crash in a non-sanitized build; likely low security impact. - Trigge...

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-2026-1044 ImageMagick before 7.1.2-22 contains a division by zero vulnerability in binomial kernel...

ImageMagick before 7.1.2-22 contains a division by zero vulnerability in binomial kernel processing that allows attackers to cause denial of service. An attacker can supply a large binomial kernel value causing integer overflow, resulting in division by zero and application crash...

JLSEC-2026-1040 ImageMagick: Heap Buffer Over-Write in JP2 encoder when due to incorrect handling of arguments

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to version 7.1.2-26, an incorrect handling of arguments can cause a heap buffer over-write in the JP2 encoder. This issue has been fixed in version7.1.2-26...

JLSEC-2026-909

A heap-based buffer overflow issue was discovered in ImageMagick's ReadTIM2ImageData function in coders/tim2.c. A local attacker could trick the user in opening specially crafted file, triggering an out-of-bounds read error, allowing an application to crash, resulting in a denial of service...

JLSEC-2026-935 ImageMagick MSL: Stack overflow via infinite recursion in ProcessMSLScript

Summary Stack overflow via infinite recursion in MSL Magick Scripting Language command when writing to MSL format. Version - ImageMagick 7.x tested on current main branch - Commit: HEAD - Requires: libxml2 support for MSL parsing Steps to Reproduce Method 1: Using ImageMagick directly bash magick...

JLSEC-2026-1046 ImageMagick before 7.1.2-19 contains a memory leak vulnerability in the PNG encoder when writing...

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...

JLSEC-2026-1069 ImageMagick before 7.1.2-26 (and 6.x before 6.9.13-51) contains a memory leak in the TIFF encoder...

ImageMagick before 7.1.2-26 and 6.x before 6.9.13-51 contains a memory leak in the TIFF encoder that occurs when a temporary file cannot be created, resulting in a small memory leak...

JLSEC-2026-973 ImageMagick vulnerable to stack corruption through long morphology kernel names or arrays

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-16 and 6.9.13-41, a stack buffer overflow exists in ImageMagick's morphology kernel parsing functions. User-controlled kernel strings exceeding a buffer are copied into fixed-siz...

JLSEC-2026-931 ImageMagick's failure to limit the depth of SVG file reads caused a DoS attack

Summary Using Magick to read a malicious SVG file resulted in a DoS attack. Details bt obtained using gdb: 4 0x0000555555794c9c in ResizeMagickMemory memory=0x7fffee203800, size=391344 at MagickCore/memory.c:1443 5 0x0000555555794e5a in ResizeQuantumMemory memory=0x7fffee203800, count=48918,...

JLSEC-2026-841

In WriteOnePNGImage of the PNG coder at coders/png.c, an improper call to AcquireVirtualMemory and memset allows for an out-of-bounds write later when PopShortPixel from MagickCore/quantum-private.h is called. The patch fixes the calls by adding 256 to rowbytes. An attacker who is able to supply ...

JLSEC-2026-1025 ImageMagick has a Heap Buffer Over-Write in MAT decoder on 32-bit systems

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-48 and 7.1.2-24, a missing check of a return value could lead to a heap buffer over-write in the MAT decoder on 32-bit systems. This issue has been patched in versions 6.9.13-48...

JLSEC-2026-1041 ImageMagick: Policy Bypass in concatenate operation due to missing checks

ImageMagick is free and open-source software used for editing and manipulating digital images. In versions prior to 7.1.2-26he, the -concatenate operation is missing policy checks, potentially resulting in both reading and writing to paths disallowed by the security policy. This issue has been...

JLSEC-2026-1065 ImageMagick before 7.1.2-26 and 6.9.13-x before 6.9.13-51 contains a policy bypass vulnerability...

ImageMagick before 7.1.2-26 and 6.9.13-x before 6.9.13-51 contains a policy bypass vulnerability in the -script operation due to missing security policy checks. This allows reading files from paths that are otherwise disallowed by the configured security policy...

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-2026-1078 ImageMagick before 7.1.2-26 and 6.9.13-51 contains a memory leak in the TIFF encoder when an...

ImageMagick before 7.1.2-26 and 6.9.13-51 contains a memory leak in the TIFF encoder when an invalid tiff:tile-geometry is specified. Supplying malformed tile geometry parameters causes allocated memory not to be released, which can lead to increased memory consumption...

JLSEC-2026-1054 ImageMagick before 7.1.2-15 contains a use-after-free vulnerability in the PDB decoder that uses...

ImageMagick before 7.1.2-15 contains a use-after-free vulnerability in the PDB decoder that uses a stale pointer when memory allocation fails. Attackers can trigger this vulnerability by processing malicious PDB files to cause crashes or write a single zero byte to freed memory...

JLSEC-2026-913

ImageMagick is a free and open-source software suite, used for editing and manipulating digital images. The AppImage version ImageMagick might use an empty path when setting MAGICKCONFIGUREPATH and LDLIBRARYPATH environment variables while executing, which might lead to arbitrary code execution b...

JLSEC-2026-824

In ImageMagick before 7.0.8-8, a NULL pointer dereference exists in the GetMagickProperty function in MagickCore/property.c...

JLSEC-2026-885

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

JLSEC-2026-1027 ImageMagick: Policy Bypass can read disallowed files via symlink

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-48 and 7.1.2-24, an incorrect parsing of the filename can result in a policy bypass and read files disallowed by a security policy using a symlink. This issue has been patched i...

JLSEC-2026-888

A flaw was found in ImageMagick in versions before 7.0.11. A potential cipher leak when the calculate signatures in TransformSignature is possible. The highest threat from this vulnerability is to data confidentiality...

JLSEC-2026-861

A flaw was found in ImageMagick in MagickCore/resize.c. An attacker who submits a crafted file that is processed by ImageMagick could trigger undefined behavior in the form of math division by zero. This would most likely lead to an impact to application availability, but could potentially cause...

JLSEC-2026-1001

ImageMagick is free and open-source software used for editing and manipulating digital images. In versions below 7.1.2-19, the JXL encoder has an heap write overflow when a user specifies that the image should be encoded as 16 bit floats. This issue has been fixed in version 7.1.2-19...

JLSEC-2026-1022 ImageMagick has a Heap Buffer Underwrite in the Floyd-Steinberg depth dithering method

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to version 7.1.2-24, when using an image with mask the Floyd-Steinberg dithering method it will cause a negative heap buffer over-write. This issue has been patched in version 7.1.2-24...

JLSEC-2026-915 In multispectral MIFF image processing in ImageMagick before 7.1.1-44, packet_size is mishandled ...

In multispectral MIFF image processing in ImageMagick before 7.1.1-44, packetsize is mishandled related to the rendering of all channels in an arbitrary order...

JLSEC-2026-863

A flaw was found in ImageMagick in MagickCore/segment.c. An attacker who submits a crafted file that is processed by ImageMagick could trigger undefined behavior in the form of math division by zero. This would most likely lead to an impact to application availability, but could potentially cause...

JLSEC-2026-1068 ImageMagick before 7.1.2-26 and 6.9.13-51 contains an information disclosure vulnerability: when...

ImageMagick before 7.1.2-26 and 6.9.13-51 contains an information disclosure vulnerability: when a profile is displayed with the identify command and the profile value is not printable, a single byte at the end of the profile can be printed read past the profile boundary. This behavior occurs whe...

JLSEC-2026-1073 ImageMagick before 7.1.2-26 contains a memory leak vulnerability in the TIFF encoder when memory...

ImageMagick before 7.1.2-26 contains a memory leak vulnerability in the TIFF encoder when memory allocation fails. Attackers can trigger allocation failures during TIFF image processing to cause memory exhaustion and denial of service...

JLSEC-2026-876

ImageMagick before 6.9.11-40 and 7.x before 7.0.10-40 mishandles the -authenticate option, which allows setting a password for password-protected PDF files. The user-controlled password was not properly escaped/sanitized and it was therefore possible to inject additional shell commands via...

JLSEC-2026-954 ImageMagick: Stack buffer overflow in FTXT reader via oversized integer field

Summary A stack-based buffer overflow exists in the ImageMagick FTXT image reader. A crafted FTXT file can cause out-of-bounds writes on the stack, leading to a crash. ================================================================= ==3537074==ERROR: AddressSanitizer: stack-buffer-overflow on...

JLSEC-2026-933

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to version 7.1.2-12, in the WriteSVGImage function, using an int variable to store numberattributes caused an integer overflow. This, in turn, triggered a buffer overflow and caused a DoS attack...

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-2026-920

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to version 7.1.2-1, when preparing to transform from Log to sRGB colorspaces, the logmap construction fails to handle cases where the reference-black or reference-white value is larger than 1024...

JLSEC-2026-993

ImageMagick is free and open-source software used for editing and manipulating digital images. In versions below 7.1.2-189 and 6.9.13-44, when Magick parses an XML file it is possible that a single zero byte is written out of the bounds. This issue has been fixed in versions 6.9.13-44 and 7.1.2-1...

JLSEC-2026-982 ImageMagick is vulnerable to Heap Overflow when writing extremely large image profile in the PNG encoder

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-16 and 6.9.13-41, an extremely large image profile could result in a heap overflow when encoding a PNG image. This vulnerability is fixed in 7.1.2-16 and 6.9.13-41...

JLSEC-2026-976 ImageMagick has heap use-after-free in the MSL encoder

A heap-use-after-free vulnerability exists in the MSL encoder, where a cloned image is destroyed twice. The MSL coder does not support writing MSL so the write capability has been removed. SUMMARY: AddressSanitizer: heap-use-after-free MagickCore/image.c:1195 in DestroyImage Shadow bytes around t...

JLSEC-2026-882

A flaw was found in ImageMagick in coders/webp.c. An attacker who submits a crafted file that is processed by ImageMagick could trigger undefined behavior in the form of math division by zero. The highest threat from this vulnerability is to system availability...

JLSEC-2026-873

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 type unsigned char. This would most likely lead to an impact to application availability, bu...

JLSEC-2026-1005

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to 7.1.2-21 and 6.9.13-46, a malicious MIFF file could trigger an overflow when a user opens it in the display tool and right-clicks a tile to invoke the Load / Update menu item. This vulnerabilit...

JLSEC-2026-904

A stack-based buffer overflow issue was found in ImageMagick's coders/tiff.c. This flaw allows an attacker to trick the user into opening a specially crafted malicious tiff file, causing an application to crash, resulting in a denial of service...

JLSEC-2026-925 ImageMagick (WriteBMPImage): 32-bit integer overflow when writing BMP scanline stride → heap buffer overflow

Summary A 32-bit integer overflow in the BMP encoder’s scanline-stride computation collapses bytesperline stride to a tiny value while the per-row writer still emits 3 × width bytes for 24-bpp images. The row base pointer advances using the overflowed stride, so the first row immediately writes...

JLSEC-2026-1047 ImageMagick before 7.1.2-18 contains a memory leak vulnerability in the META reader when...

ImageMagick before 7.1.2-18 contains a memory leak vulnerability in the META reader when processing APP1JPEG input paths. Attackers can trigger this memory leak by providing specially crafted APP1JPEG image files, causing denial of service through resource exhaustion...

JLSEC-2026-1035 ImageMagick: Information Disclosure in MNG decoder because allocated memory is left unchanged

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-51 and 7.1.2-26, the MNG decoder contains a possible heap information disclosure vulnerability because part of the pixels are left unchanged. This issue has been fixed in versio...