CVE-2026-101258
Canonical Ubuntu Linux: out-of-bounds write
- Risk score
- 53/100
- CVSS
- 7.8 v3.1
- Exploit chance (30 days)
- 0.2%
- Published
- 6 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- A flaw was found in Ghostscript. When Ghostscript renders a crafted PostScript or EPS document, it can bypass the -dSAFER sandbox and execute arbitrary shell commands in the context of the Ghostscript process. The issue chains memory corruption in document parsing with disabling of internal path access controls at run…
- Affected
- Canonical Ubuntu Linux
- Fix
- Apply the vendor's security update; see the linked advisory.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 7.8 high
- Named in a government or vendor bulletin
Government and vendor bulletins
References
- https://ubuntu.com/security/notices/USN-8949-1
- https://access.redhat.com/errata/RHSA-2026:83551
- https://access.redhat.com/errata/RHSA-2026:83552
- https://access.redhat.com/errata/RHSA-2026:83553
- https://access.redhat.com/security/cve/CVE-2026-101258
- https://bugzilla.redhat.com/show_bug.cgi?id=2542396
- https://github.com/v12-security/pocs/tree/main/ghostscript
Original description
A flaw was found in Ghostscript. When Ghostscript renders a crafted PostScript or EPS document, it can bypass the -dSAFER sandbox and execute arbitrary shell commands in the context of the Ghostscript process. The issue chains memory corruption in document parsing with disabling of internal path access controls at runtime. An attacker can deliver the document directly or through formats that delegate rendering to Ghostscript (for example EPS import or print conversion workflows). Successful exploitation can compromise confidentiality, integrity, and availability of data accessible to the process running Ghostscript.
Last activity 21 Oct 2026. Patch Forecast updates every hour.