CVE-2026-26284: ImageMagick has heap overflow in pcd decoder that leads to out of bounds read.
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, ImageMagick lacks proper boundary checking when processing Huffman-coded data from PCD (Photo CD) files. The decoder contains an function that has an incorrect initialization that could cause an out of bounds read. Versions 7.1.2-15 and 6.9.13-40 contain a patch.
Other sources
The pcd coder lacks proper boundary checking when processing Huffman-coded data. The decoder contains an function that has an incorrect initialization that could cause an out of bounds read.
==3900053==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x502000003c6c at pc 0x55601b9cc552 bp 0x7ffd904b1f70 sp 0x7ffd904b1f60 READ of size 1 at 0x502000003c6c thread T0
— GitHub
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-26284?
CVE-2026-26284 is classified as a critical vulnerability due to its potential to cause heap overflow leading to out of bounds read.
How do I fix CVE-2026-26284?
To remediate CVE-2026-26284, upgrade your ImageMagick installation to versions 7.1.2-15 or 6.9.13-40 or later.
What versions of ImageMagick are affected by CVE-2026-26284?
CVE-2026-26284 affects ImageMagick versions prior to 7.1.2-15 and 6.9.13-40.
What is the nature of the vulnerability in CVE-2026-26284?
CVE-2026-26284 is a heap overflow vulnerability in the pcd decoder of ImageMagick caused by insufficient boundary checking.
Can CVE-2026-26284 be exploited remotely?
Yes, CVE-2026-26284 can potentially be exploited remotely through specially crafted images processed by the vulnerable ImageMagick versions.