🔐 CVE Alert

CVE-2026-39919

CRITICAL 9.8

Ghostscript < 10.08.0 Heap Buffer Overflow via JPEG 2000 Output Adapter

CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th

Ghostscript before 10.08.0 contains a heap-based buffer overflow vulnerability in the JPEG 2000 output adapter (base/sjpx_openjpeg.c) that allows attackers to cause memory corruption by supplying a crafted PDF containing a JPEG 2000 image with mismatched component subsampling factors. When image components declare different subsampling values, the non-samescale sub-byte-depth output path allocates a row buffer sized for packed output but writes a full byte per output column regardless of bit depth, overflowing the allocation and corrupting internal chunk-allocator metadata to achieve code execution.

CWE CWE-122
Vendor artifex software
Product ghostscript
Published Sep 15, 2026
Stay Ahead of the Next One

Get instant alerts for artifex software ghostscript

Be the first to know when new critical vulnerabilities affecting artifex software ghostscript are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Affected Versions

Artifex Software / Ghostscript
0 < 10.08.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗
github.com: https://github.com/ArtifexSoftware/ghostpdl-downloads/releases/tag/gs10080 github.com: https://github.com/ArtifexSoftware/ghostpdl/commit/0a8bf88e39db07b0751a58d6ec1cf992073e4dc1 bugs.ghostscript.com: https://bugs.ghostscript.com/show_bug.cgi?id=709666 vulncheck.com: https://www.vulncheck.com/advisories/ghostscript-heap-buffer-overflow-via-jpeg-2000-output-adapter

Credits

Alex Thomas, Wordfence Wordfence Argus