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Ghostscript heap overflow enables RCE via crafted PDF uploads

2026-10-14 15:48 UTC · BleepingComputer · read the source ↗ #ghostscript#remote-code-execution#pdf-upload
  • Engineer — Act: A public PoC on GitHub makes exploitation of this critical heap buffer overflow practical; audit any server-side document or image-processing pipelines that invoke Ghostscript, and patch to the fixed version immediately or restrict PDF upload endpoints until patching is complete.
  • SOC/IR — Plan: No active exploitation reported yet, but the public PoC shortens the window; build detections for anomalous Ghostscript process behavior — unexpected child process spawning or outbound network calls from Ghostscript — and baseline normal document-processing activity now.
  • Leader — Skip
  • Signals: CVE-2026-39919 — CISA KEV: not listed, EPSS 0.01, public PoC on GitHub
This entry was curated and judged by AI (Claude) with automated enrichment (CISA KEV / EPSS / public PoC). Verify against the original source before acting. Found a bad verdict? Report it — confirmed errors go to the corrections log.