Answer in brief
CVE-2026-39919 records a Critical severity (CVSS 9.3) 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), 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.
CVSS is 9.3. 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.
The current feed maps Artifex Software/Ghostscript (generic), Artifex Software/Ghostscript (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Artifex Software/Ghostscriptgeneric | >=0 <10.08.0 | 10.08.0 |
| Artifex Software/Ghostscriptgeneric | * | Not reported |
Published upstream
Sep 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 1, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 15, 2026
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.