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CVE-2026-39919: Product identification pending

Severity

9.3 (CRITICAL)

Vendor

GHOSTSCRIPT BEFORE

Affected versions

Before 10.08.0

Fixed version

10.08.0

Patch status

Patched

Published

2026-09-15T15:17:14.723

Modified

2026-09-15T15:17:14.723

Why it matters

This matters because the affected product may allow code execution. Prioritize systems that are internet-facing or have privileged access to other infrastructure.

Recommended admin actions

• Prioritize validation immediately due to critical CVSS severity.
• Compare installed versions against the affected version range in the advisory.

Technical summary

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.

View the official NVD record for CVE-2026-39919

CVE data is sourced from NVD/CNA records and optional enrichment. Validate against the vendor advisory before taking production action.