JLSEC-2026-975 ImageMagick has Heap Use-After-Free in ImageMagick MSL decoder

A heap use-after-free vulnerability in ImageMagick's MSL decoder allows an attacker to trigger access to freed memory by crafting an MSL file. ================================================================= ==1500633==ERROR: AddressSanitizer: heap-use-after-free on address 0x527000011550 at pc...

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-2026-888

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-2026-878

An integer overflow issue was discovered in ImageMagick's ExportIndexQuantum function in MagickCore/quantum-export.c. Function calls to GetPixelIndex could result in values outside the range of representable for the 'unsigned char'. When ImageMagick processes a crafted pdf file, this could lead t...

JLSEC-2026-979

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 uninitialized pointer dereference vulnerability exists in the JBIG decoder due to a missing check. This vulnerability is fixed in 7.1.2-16 and 6.9.13-41...

JLSEC-2026-927 ImageMagick has Integer Overflow in BMP Decoder (ReadBMP)

Summary CVE-2025-57803 claims to be patched in ImageMagick 7.1.2-2, but the fix is incomplete and ineffective. The latest version 7.1.2-5 remains vulnerable to the same integer overflow attack. The patch added BMPOverflowCheck but placed it after the overflow occurs, making it useless. A maliciou...

JLSEC-2026-921 imagemagick: integer overflows in MNG magnification

Vulnerability Details The magnified size calculations in ReadOneMNGIMage in coders/png.c are unsafe and can overflow, leading to memory corruption. The source snippet below is heavily abbreviated due to the size of the function, but hopefully the important points are captured. c static Image...

JLSEC-2026-981 ImageMagick: Integer overflow in DIB coder can result in out of bounds read or write

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 integer overflow in DIB coder can result in out of bounds read or write. This vulnerability is fixed in 7.1.2-16 and 6.9.13-41...

JLSEC-2026-936

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-13 and 6.9.13-38, a heap buffer overflow vulnerability in the XBM image decoder ReadXBMImage allows an attacker to write controlled data past the allocated heap buffer when...

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-2026-1069 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-2026-953 ImageMagick's Security Policy Bypass through config/policy-secure.xml via "fd handler" leads to stdin/stdout access

ImageMagick is free and open-source software used for editing and manipulating digital images. The shipped "secure" security policy includes a rule intended to prevent reading/writing from standard streams. However, ImageMagick also supports fd: pseudo-filenames e.g., fd:0, fd:1. Prior to version...

JLSEC-2026-1051

ImageMagick before 7.1.2-19 contains an out-of-bounds access vulnerability in ConnectedComponentsImage when processing connected-components artifacts with invalid indices. Attackers can trigger access violations by specifying malformed connected-components definitions via CLI, causing denial of...

JLSEC-2026-980

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, MAT decoder uses 32-bit arithmetic due to incorrect parenthesization resulting in a heap over-read. This vulnerability is fixed in 7.1.2-16 and 6.9.13-41...

JLSEC-2026-1004 ImageMagick has an off-by-one error in MSL decoder could result in crash

ImageMagick is free and open-source software used for editing and manipulating digital images. In versions below 7.1.2-19, an off by one error in the MSL decoder could result in a crash when a malicous MSL file is read. This issue has been fixed in version 7.1.2-19...

JLSEC-2026-990 ImageMagick has a heap-buffer-overflow in NewXMLTree which could result in crash

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to 7.1.2-17 and 6.9.13-42, the NewXMLTree method contains a bug that could result in a crash due to an out of write bounds of a single zero byte. Versions 7.1.2-17 and 6.9.13-42 fix the issue...

JLSEC-2026-860

A flaw was found in ImageMagick in coders/hdr.c. 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, but could...

JLSEC-2026-963 ImageMagick has a heap buffer over-read in its MAP image decoder

A heap buffer over-read vulnerability exists in the MAP image decoder when processing crafted MAP files, potentially leading to crashes or unintended memory disclosure during image decoding. ================================================================= ==4070926==ERROR: AddressSanitizer:...

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-2026-1022 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...