Ghostscript < 10.08.0 Heap Buffer Overflow via JPEG 2000 Output Adapter (CVE-2026-39919) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-39919

Ghostscript < 10.08.0 Heap Buffer Overflow via JPEG 2000 Output Adapter

Answer in brief

CVE-2026-39919 records a Unknown severity vulnerability in Ghostscript < 10.08.0 Heap Buffer Overflow via JPEG 2000 Output Adapter. The current sources do not mark it as known exploited. The current feed maps Artifex Software/Ghostscript (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 15, 2026Updated Sep 15, 2026Source checked Sep 15, 2026First seen by HOL Sep 15, 2026Material review Sep 15, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Artifex Software/Ghostscript (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Artifex Software/Ghostscriptgeneric	>=0 <10.08.0	10.08.0

Recommended response

Check inventory. Check lockfiles and deployed manifests for Artifex Software/Ghostscript.
Review the reported fix. Update Artifex Software/Ghostscript to 10.08.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 15, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 15, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 15, 2026

Sources and claim methodology

Upstream source description

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.

Quoted source text, attributed separately from HOL analysis.