CVE-2026-39919

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.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

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

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-15 15:17

Updated : 2026-09-15 15:17

NVD link : CVE-2026-39919

Mitre link : CVE-2026-39919

CVE.ORG link : CVE-2026-39919

JSON object : View

Products Affected

No product.

CWE

CWE-122

Heap-based Buffer Overflow

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