CVE-2026-93588

Use ImageMagick to create, edit, compose, or convert bitmap images. It can read and write images in a variety of formats (over 200) including PNG, JPEG, GIF, HEIC, TIFF, DPX, EXR, WebP, Postscript, PDF, and SVG. Use ImageMagick to resize, flip, mirror, rotate, distort, shear and transform images, adjust image colors, apply various special effects, or draw text, lines, polygons, ellipses and Bézier curves.

Security Fix(es):

ImageMagick before 7.1.2-31 and before 6.9.13-56 contains a use-after-free vulnerability in the ImagesToBlob method, caused by a pointer that is not updated correctly. Exploitation may result in a limited availability impact (e.g., a crash of the affected process). The issue is fixed in versions 7.1.2-31 and 6.9.13-56.(CVE-2026-93586)

ImageMagick before 7.1.2-31 and before 6.9.13-56 contains a policy bypass in the PCD (and, per the upstream advisory, CUBE and HALD) coder: when a specific command line option is supplied, the decoder does not check a configured resource limit, which can result in extra memory allocation. A local user able to pass command line options to ImageMagick can therefore exceed the intended memory policy limit, causing a limited availability impact. The issue is fixed in 7.1.2-31 and 6.9.13-56.(CVE-2026-93587)

ImageMagick before 7.1.2-31 and before 6.9.13-56 contains a NULL pointer dereference in the PNM coder. When the coder reaches a memory (resource) limit at a specific point during processing, the failed allocation is not handled and a NULL pointer is dereferenced, which can lead to a denial of service (application crash) when processing a specially crafted or sufficiently large PNM image.(CVE-2026-93588)

ImageMagick before 7.1.2-31 and 6.9.13-56 contains a division-by-zero flaw in the FLIF encoder. An incorrect value for ticks per second in the image being encoded causes a divide-by-zero and crashes the encoder, resulting in a denial of service. The issue is fixed in 7.1.2-31 and 6.9.13-56.(CVE-2026-93589)

ImageMagick before 7.1.2-31 and before 6.9.13-56 contains a NULL pointer dereference in the PNM coder. When the coder reaches a memory (resource) limit at a specific point during processing, the failed allocation is not handled and a NULL pointer is dereferenced, which can lead to a denial of service (application crash) when processing a specially crafted or sufficiently large PNM image.

• CVE-2026-93586: fix a use-after-free when ImagesToBlob() writes an image list to an in-memory blob
• CVE-2026-93587: make the PCD and HALD readers honour the list-length resource limit when cloning scenes
• CVE-2026-93588: fix a NULL pointer dereference when a PNM comment cannot be grown

• CVE-2026-93586: fix a use-after-free when ImagesToBlob() writes an image list to an in-memory blob
• CVE-2026-93587: make the PCD and HALD readers honour the list-length resource limit when cloning scenes
• CVE-2026-93588: fix a NULL pointer dereference when a PNM comment cannot be grown

• CVE-2026-93586: fix a use-after-free when ImagesToBlob() writes an image list to an in-memory blob
• CVE-2026-93587: make the PCD and HALD readers honour the list-length resource limit when cloning scenes
• CVE-2026-93588: fix a NULL pointer dereference when a PNM comment cannot be grown

• CVE-2026-93586: fix a use-after-free when ImagesToBlob() writes an image list to an in-memory blob
• CVE-2026-93587: make the PCD and HALD readers honour the list-length resource limit when cloning scenes
• CVE-2026-93588: fix a NULL pointer dereference when a PNM comment cannot be grown

• CVE-2026-93586: fix a use-after-free when ImagesToBlob() writes an image list to an in-memory blob
• CVE-2026-93587: make the PCD and HALD readers honour the list-length resource limit when cloning scenes
• CVE-2026-93588: fix a NULL pointer dereference when a PNM comment cannot be grown

• CVE-2026-93586: fix a use-after-free when ImagesToBlob() writes an image list to an in-memory blob
• CVE-2026-93587: make the PCD and HALD readers honour the list-length resource limit when cloning scenes
• CVE-2026-93588: fix a NULL pointer dereference when a PNM comment cannot be grown

• SECURITY UPDATE: use-after-free in ImagesToBlob() when writing a multi-image list to an in-memory blob
  • debian/patches/CVE-2026-93586.patch: add SyncBlobStream() and call it after WriteImage()/WriteImages() so the owner image and image info track the live blob buffer, in magick/blob.c, magick/blob-private.h and magick/constitute.c
  • CVE-2026-93586
• SECURITY UPDATE: resource policy bypass in the PCD and HALD coders
  • debian/patches/CVE-2026-93587.patch: check the list-length resource limit before cloning image_info->scene frames, in coders/pcd.c and coders/hald.c
  • CVE-2026-93587
• SECURITY UPDATE: NULL pointer dereference in the PNM coder
  • debian/patches/CVE-2026-93588.patch: check the comment buffer for NULL before using it, in PNMComment() and ReadPNMImage() in coders/pnm.c
  • CVE-2026-93588

• Rebase to EPEL 8 ImageMagick-6.9.13.58-1.el8
• Drop the vendor soname-revert patch: the 6.9.13.58 tarball already sets MAGICK_LIBRARY_CURRENT=7, matching the libraries shipped so far
• Drop the TuxCare backports for CVE-2026-86420, CVE-2026-86421, CVE-2026-93586, CVE-2026-93587, CVE-2026-93588, CVE-2026-106571, CVE-2026-106572, CVE-2026-106573, CVE-2026-106577, CVE-2026-106578, CVE-2026-106579, CVE-2026-106580, CVE-2026-107208 and CVE-2026-107210: all are fixed in the 6.9.13.58 tarball, verified against the extracted source
• Keep the CVE-2026-45664 backport: both MNG_MAX_LOOP_OPS abort paths in coders/png.c still leak the chunk buffer in 6.9.13.58
• Keep the MSL empty-image crash fix (partial backport of upstream fde1f305, not present in the legacy 6.x line)

• Rebase to EPEL 8 ImageMagick-6.9.13.58-1.el8
• Drop the vendor soname-revert patch: the 6.9.13.58 tarball already sets MAGICK_LIBRARY_CURRENT=7, matching the libraries shipped so far
• Drop the TuxCare backports for CVE-2026-86420, CVE-2026-86421, CVE-2026-93586, CVE-2026-93587, CVE-2026-93588, CVE-2026-106571, CVE-2026-106572, CVE-2026-106573, CVE-2026-106577, CVE-2026-106578, CVE-2026-106579, CVE-2026-106580, CVE-2026-107208 and CVE-2026-107210: all are fixed in the 6.9.13.58 tarball, verified against the extracted source
• Keep the CVE-2026-45664 backport: both MNG_MAX_LOOP_OPS abort paths in coders/png.c still leak the chunk buffer in 6.9.13.58
• Keep the MSL empty-image crash fix (partial backport of upstream fde1f305, not present in the legacy 6.x line)

• Rebase to EPEL 8 ImageMagick-6.9.13.58-1.el8
• Drop the vendor soname-revert patch: the 6.9.13.58 tarball already sets MAGICK_LIBRARY_CURRENT=7, matching the libraries shipped so far
• Drop the TuxCare backports for CVE-2026-86420, CVE-2026-86421, CVE-2026-93586, CVE-2026-93587, CVE-2026-93588, CVE-2026-106571, CVE-2026-106572, CVE-2026-106573, CVE-2026-106577, CVE-2026-106578, CVE-2026-106579, CVE-2026-106580, CVE-2026-107208 and CVE-2026-107210: all are fixed in the 6.9.13.58 tarball, verified against the extracted source
• Keep the CVE-2026-45664 backport: both MNG_MAX_LOOP_OPS abort paths in coders/png.c still leak the chunk buffer in 6.9.13.58
• Keep the MSL empty-image crash fix (partial backport of upstream fde1f305, not present in the legacy 6.x line)

• Rebase to EPEL 8 ImageMagick-6.9.13.58-1.el8
• Drop the vendor soname-revert patch: the 6.9.13.58 tarball already sets MAGICK_LIBRARY_CURRENT=7, matching the libraries shipped so far
• Drop the TuxCare backports for CVE-2026-86420, CVE-2026-86421, CVE-2026-93586, CVE-2026-93587, CVE-2026-93588, CVE-2026-106571, CVE-2026-106572, CVE-2026-106573, CVE-2026-106577, CVE-2026-106578, CVE-2026-106579, CVE-2026-106580, CVE-2026-107208 and CVE-2026-107210: all are fixed in the 6.9.13.58 tarball, verified against the extracted source
• Keep the CVE-2026-45664 backport: both MNG_MAX_LOOP_OPS abort paths in coders/png.c still leak the chunk buffer in 6.9.13.58
• Keep the MSL empty-image crash fix (partial backport of upstream fde1f305, not present in the legacy 6.x line)

These are all security issues fixed in the ImageMagick-7.1.2.31-2.1 package on the GA media of openSUSE Tumbleweed.

This update for ImageMagick fixes the following issues:

• CVE-2026-93586: use-after-free in the ImagesToBlob method can lead to a process crash (bsc#1281912).
• CVE-2026-93587: policy bypass in the PCD, CUBE and HALD coders can lead to extra memory allocation and a denial of service (bsc#1281909).
• CVE-2026-93588: NULL pointer dereference in the PNM coder can lead to a denial of service (bsc#1281910).
• CVE-2026-93589: division-by-zero flaw in the FLIF encoder can lead to a denial of service (bsc#1281911).
• CVE-2026-93590: failure to perform policy checks during buffer allocation for image pixels in the UHDR encoder can lead to denial of service (bsc#1281913).

This update for ImageMagick fixes the following issues:

• CVE-2026-93586: use-after-free in the ImagesToBlob method can lead to a process crash (bsc#1281912).
• CVE-2026-93587: policy bypass in the PCD, CUBE and HALD coders can lead to extra memory allocation and a denial of service (bsc#1281909).
• CVE-2026-93588: NULL pointer dereference in the PNM coder can lead to a denial of service (bsc#1281910).
• CVE-2026-93589: division-by-zero flaw in the FLIF encoder can lead to a denial of service (bsc#1281911).
• CVE-2026-93590: failure to perform policy checks during buffer allocation for image pixels in the UHDR encoder can lead to denial of service (bsc#1281913).

This update for ImageMagick fixes the following issues:

• CVE-2026-62343: heap buffer over-write in morphology operation when an invalid kernel is provided (bsc#1272575).
• CVE-2026-62363: heap buffer over-write in fx operation (bsc#1272582).
• CVE-2026-62946: integer overflow in JNX decoder causes heap buffer over-write when processing extremly large files on 32-bit builds (bsc#1272580).
• CVE-2026-64685: heap buffer over-read in BGR decoder due to missing end-of-file check (bsc#1272953).
• CVE-2026-66011: memory Leak when providing invalid options to the cli (bsc#1272577).
• CVE-2026-86420: denial of Service due to memory budget exhaustion (bsc#1279696).
• CVE-2026-86421: denial of Service via memory leak in MSL decoder (bsc#1279711).
• CVE-2026-86423: denial of service via heap-use-after-free in PerlMagick's GetList method (bsc#1279794).
• CVE-2026-86425: denial of Service due to heap-use-after-free vulnerability (bsc#1279797).
• CVE-2026-93586: use-after-free in the ImagesToBlob method can lead to a process crash (bsc#1281912).
• CVE-2026-93587: policy bypass in the PCD, CUBE and HALD coders can lead to extra memory allocation and a denial of service (bsc#1281909).
• CVE-2026-93588: NULL pointer dereference in the PNM coder can lead to a denial of service (bsc#1281910).
• CVE-2026-93589: division-by-zero flaw in the FLIF encoder can lead to a denial of service (bsc#1281911).
• GHSA-hc76-7mpc-qjqh: code injection in HTML encoder due to incomplete fix of CVE-2026-25797 (bsc#1272579).

This update for ImageMagick fixes the following issues:

• CVE-2026-86420: Denial of Service due to memory budget exhaustion (bsc#1279696).
• CVE-2026-86421: Denial of Service via memory leak in MSL decoder (bsc#1279711).
• CVE-2026-86423: Denial of service via heap-use-after-free in PerlMagick's GetList method (bsc#1279794).
• CVE-2026-86425: Denial of Service due to heap-use-after-free vulnerability (bsc#1279797).
• CVE-2026-93586: use-after-free in the ImagesToBlob method can lead to a process crash (bsc#1281912).
• CVE-2026-93587: policy bypass in the PCD, CUBE and HALD coders can lead to extra memory allocation and a denial of service (bsc#1281909).
• CVE-2026-93588: NULL pointer dereference in the PNM coder can lead to a denial of service (bsc#1281910).
• CVE-2026-93589: division-by-zero flaw in the FLIF encoder can lead to a denial of service (bsc#1281911).
• CVE-2026-93590: failure to perform policy checks during buffer allocation for image pixels in the UHDR encoder can lead to denial of service (bsc#1281913).
• CVE-2026-105083: security policy not applied when a user changes the DOCTYPE in the policy.xml file to something else that is valid xml (bsc#1284217).
• CVE-2026-106564: a crafted EXR image can cause the EXR decoder to write beyond a heap buffer, causing the process to crash (bsc#1284661).
• CVE-2026-106565: a missing end-of-file check while reading bzip2-compressed image data can cause an infinite loop (bsc#1284662).
• CVE-2026-106566: delegate symlink cleanup does not check the MAGICK_SHRED_PASSES environment variable, allowing a local privileged workflow to overwrite a file with random data (bsc#1284663).
• CVE-2026-106567: a crafted PSD file can trigger an integer-conversion error in the PSD decoder, causing an infinite loop and DoS (bsc#1284664).
• CVE-2026-106568: a crafted XMP profile embedded in an image can cause the profile parser to enter an infinite loop (bsc#1284665).
• CVE-2026-106570: an unauthenticated adjacent-network client can repeatedly connect to the distributed pixel cache server and exhaust its available connections, causing a DoS (bsc#1284667).
• CVE-2026-106571: a crafted local call to the GetVirtualPixels API can trigger an integer calculation error and write beyond a heap buffer, crashing the server process (bsc#1284668).
• CVE-2026-106572: a missing recursion-depth check in the CALS decoder allows a crafted CALS image to exhaust the call stack and terminate the process (bsc#1284669).
• CVE-2026-106573: a missing limit check in the MVG decoder allows a crafted MVG image to trigger an excessively long- running operation (bsc#1284671).
• CVE-2026-106574: a client connected to the distributed pixel cache server can send crafted pixel data that triggers a heap buffer overwrite and crash the server (bsc#1284672).
• CVE-2026-106575: a crafted Magick script can cause an opened file pointer to remain unclosed, allowing repeated processing to exhaust available file descriptors (bsc#1284673).
• CVE-2026-106576: a crafted XMP profile can trigger excessive work while the parser determines a rational value's numerator and denominator, causing a DoS (bsc#1284674).
• CVE-2026-106577: unescaped or untrimmed values can inject code into output generated by PostScript coders (bsc#1284675).
• CVE-2026-106578: a crafted image can cause an invalid memory free in the MVG decoder and crash the process (bsc#1284677).
• CVE-2026-106579: a crafted image can bypass an ImageMagick security policy that uses coder as its domain, potentially allowing data prohibited by the policy to be read (bsc#1284678).
• CVE-2026-107208: a crafted XMP profile can reach a recursion limit that is handled as a fatal condition instead of an ordinary exception, terminating the image-processing process (bsc#1284681).
• CVE-2026-107209: when ImageMagick is built without Cairo support, a crafted RSVG image that reaches a resource limit can cause a crash (bsc#1284682).
• CVE-2026-107210: a…

This update for ImageMagick fixes the following issues:

• CVE-2026-93586: use-after-free in the ImagesToBlob method can lead to a process crash (bsc#1281912).
• CVE-2026-93587: policy bypass in the PCD, CUBE and HALD coders can lead to extra memory allocation and a denial of service (bsc#1281909).
• CVE-2026-93588: NULL pointer dereference in the PNM coder can lead to a denial of service (bsc#1281910).
• CVE-2026-93589: division-by-zero flaw in the FLIF encoder can lead to a denial of service (bsc#1281911).
• CVE-2026-105083: security policy not applied when a user changes the DOCTYPE in the policy.xml file to something else that is valid xml (bsc#1284217).
• CVE-2026-106565: a missing end-of-file check while reading bzip2-compressed image data can cause an infinite loop (bsc#1284662).
• CVE-2026-106566: delegate symlink cleanup does not check the MAGICK_SHRED_PASSES environment variable, allowing a local privileged workflow to overwrite a file with random data (bsc#1284663).
• CVE-2026-106567: a crafted PSD file can trigger an integer-conversion error in the PSD decoder, causing an infinite loop and DoS (bsc#1284664).
• CVE-2026-106568: a crafted XMP profile embedded in an image can cause the profile parser to enter an infinite loop (bsc#1284665).
• CVE-2026-106570: an unauthenticated adjacent-network client can repeatedly connect to the distributed pixel cache server and exhaust its available connections, causing a DoS (bsc#1284667).
• CVE-2026-106571: a crafted local call to the GetVirtualPixels API can trigger an integer calculation error and write beyond a heap buffer, crashing the server process (bsc#1284668).
• CVE-2026-106572: a missing recursion-depth check in the CALS decoder allows a crafted CALS image to exhaust the call stack and terminate the process (bsc#1284669).
• CVE-2026-106573: a missing limit check in the MVG decoder allows a crafted MVG image to trigger an excessively long- running operation (bsc#1284671).
• CVE-2026-106574: a client connected to the distributed pixel cache server can send crafted pixel data that triggers a heap buffer overwrite and crash the server (bsc#1284672).
• CVE-2026-106575: a crafted Magick script can cause an opened file pointer to remain unclosed, allowing repeated processing to exhaust available file descriptors (bsc#1284673).
• CVE-2026-106577: unescaped or untrimmed values can inject code into output generated by PostScript coders (bsc#1284675).
• CVE-2026-106578: a crafted image can cause an invalid memory free in the MVG decoder and crash the process (bsc#1284677).
• CVE-2026-106579: a crafted image can bypass an ImageMagick security policy that uses coder as its domain, potentially allowing data prohibited by the policy to be read (bsc#1284678).
• CVE-2026-106580: a missing security-policy check in the CUT encoder allows a crafted local encoding operation to read data that policy should deny and can also cause a crash (bsc#1284680).
• CVE-2026-107208: a crafted XMP profile can reach a recursion limit that is handled as a fatal condition instead of an ordinary exception, terminating the image-processing process (bsc#1284681).
• CVE-2026-107209: when ImageMagick is built without Cairo support, a crafted RSVG image that reaches a resource limit can cause a crash (bsc#1284682).
• CVE-2026-107210: a crafted highly compressed MAT image can make the MAT decoder create temporary files larger than the configured security-policy limit (bsc#1284683).
• CVE-2026-109259: Information disclosure via crafted TGA image (bsc#1285071).
• CVE-2026-109260: Denial of Service via memory leak in PNG encoder (bsc#1285071).
• CVE-2026-109261: Denial of Service via memory leak in GIF encoder (bsc#1285071).
• CVE-2026-109262: Denial of Service via memory leak in SVG encoder (bsc#1285071).
• CVE-2026-109263: Denial of Service via memory leak in YUV encoder (bsc#1285071).
• CVE-2026-109266: XML injection vulnerability in the CIP encoder (bsc#1285071). -…

It was discovered that ImageMagick did not correctly handle certain images. An attacker could possibly use this issue to cause a denial of service or obtain sensitive information. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, and Ubuntu 24.04 LTS. (CVE-2026-56367)

It was discovered that ImageMagick did not correctly handle certain images. An attacker could possibly use this issue to cause a denial of service. (CVE-2026-93586)

It was discovered that ImageMagick did not correctly handle certain images. A local attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS. (CVE-2026-93587, CVE-2026-93588)

It was discovered that ImageMagick did not correctly handle certain images. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS. (CVE-2026-93589)

It was discovered that ImageMagick did not correctly handle certain images. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 26.04 LTS. (CVE-2026-93590)