Vulnerability · Published Sep 29, 2026 · Assigned by CERT-PL
CVE-2026-19547Local Privilege Escalation in Ghostscript for Windows
High 7.0
In plain English
A high-severity security flaw in Ghostscript from Artifex Software Inc.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 1% of all known vulnerabilities).
Official description
Ghostscript for Windows is vulnerable to local privilege escalation through PostScript resource file hijacking. Due to the application searching for PostScript resource files in predictable paths under C:\\gs\\ that do not exist by default on Windows installations, combined with Windows default ACLs allowing any authenticated user to create directories at the root of C:\\, an attacker who is an authenticated local user can create the expected directory structure and plant a malicious PostScript file. When any user or service subsequently runs Ghostscript, the planted file is automatically loaded and executed with the full privileges of the Ghostscript process. This results in full compromise of Ghostscript process context, as well as running arbitrary code on the machine with Ghostscript process privileges. This issue was fixed in version 10.08.0.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:22.04:LTS | ghostscript | no fix listed | UBUNTU-CVE-2026-19547 |
| Ubuntu:24.04:LTS | ghostscript | no fix listed | UBUNTU-CVE-2026-19547 |
| Ubuntu:26.04:LTS | ghostscript | no fix listed | UBUNTU-CVE-2026-19547 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Artifex Software Inc. | Ghostscript | 0 – before 10.08.0 |
Weakness: CWE-426 · Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:L/SI:L/SA:N
References
- https://cert.pl/en/posts/2026/09/CVE-2026-19547 third-party-advisory
- https://ghostscript.com/ product
- https://bugs.ghostscript.com/show_bug.cgi?id=709522 third-party-advisory