Remote code execution in a widely used PDF/PostScript interpreter affecting servers that process PDFs and print pipelines; high-impact compromise risk.
CVE-2026-39919
Heap buffer overflow in Ghostscript JPEG2000 output allows RCE via crafted PDF.
Is CVE-2026-39919 being exploited?
Not confirmed. CVE-2026-39919 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked.
How severe is CVE-2026-39919?
CVE-2026-39919 is rated Critical with a CVSS score of 9.3. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-39919?
Yes. A fix has been recorded for CVE-2026-39919. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-39919 affect?
CVE-2026-39919 affects Ghostscript < 10.08.0, GhostPDL, PDF processing servers, Print servers, email gateways, document workflows. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-39919?
Upgrade to Ghostscript 10.08.0+, block or sandbox untrusted PDFs, patch PDF ingestion services.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote code execution by supplying a crafted PDF with a JPEG2000 image; attacker can run arbitrary code as the Ghostscript process.
Immediate action required
- affected< 10.08.0
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.