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Fencer Vulns
medium 6.3

CVE-2026-103226 json

Artifex Ghostscript Pdfwrite gdevpsfx.c type1_callsubr stack-based overflow

published 2026-09-30 40 d ago modified 2026-10-15 24 d ago also EUVD-2026-89962

cvss
6.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 25%
public exploits
0
none known

Summary

A vulnerability was identified in Artifex Ghostscript up to 10.07.0. Affected is the function type1_callsubr of the file devices/vector/gdevpsfx.c of the component Pdfwrite. The manipulation leads to stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit is publicly available and might be used. Upgrading to version 10.08.0 is able to address this issue. It is suggested to upgrade the affected component. A solution was implemented: "I've chosen to fix this slightly differently by using the defined macro in the font parsing loop rather than in the callsubr function, because this better matches the pattern of 'normal' usage."

Patch / fix

  • Artifex Ghostscript 10.08.0
  • ghostscript Debian 13 10.05.1~dfsg-1+deb13u3
  • ghostscript Debian 14 10.08.0~dfsg-1

debian advisories DEBIAN-CVE-2026-103226

  • ghostscript Ubuntu 22.04 LTS 9.55.0~dfsg1-0ubuntu5.15
  • ghostscript Ubuntu 24.04 LTS 10.02.1~dfsg1-0ubuntu7.10
  • ghostscript Ubuntu 26.10 10.07.1~dfsg-1ubuntu2.1
  • ghostscript Ubuntu 26.04 LTS 10.06.0~dfsg-3ubuntu1.2
  • ghostscript Ubuntu Pro 16.04 LTS 9.26~dfsg+0-0ubuntu0.16.04.14+esm11
  • ghostscript Ubuntu Pro 18.04 LTS 9.26~dfsg+0-0ubuntu0.18.04.18+esm6
  • ghostscript Ubuntu Pro 20.04 LTS 9.50~dfsg-5ubuntu4.15+esm3

ubuntu advisories UBUNTU-CVE-2026-103226

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • ghostscript RHEL 9 9.54.0-19.el9_8.3
  • libgs RHEL 9 9.54.0-19.el9_8.3
  • ghostscript RHEL 10.2 10.02.1-16.el10_2.3
  • libgs RHEL 10.2 10.02.1-16.el10_2.3
  • ghostscript RHEL 8 9.27-19.el8_10
  • libgs RHEL 8 9.27-19.el8_10

red hat advisories RHSA-2026:83553RHSA-2026:83551RHSA-2026:83552

  • ghostscript SLES for SAP 15 SP6, SLES for SAP 15 SP5, SLES for SAP 15 SP4 +8 more 9.52-150000.217.1
  • ghostscript SLES for SAP applications 16.0, SLES 16.0 10.08.0-160000.2.1
  • ghostscript SLES LTSS Extended Security 12 SP5, SLES 12 SP5-LTSS 9.52-23.103.1

suse advisories SUSE-SU-2026:5094-1SUSE-SU-2026:5039-1SUSE-SU-2026:24468-1

  • ghostscript openSUSE Leap 16.0 10.08.0-160000.2.1
  • ghostscript openSUSE Tumbleweed 10.08.0-2.1

opensuse advisories openSUSE-SU-2026:22176-1openSUSE-SU-2026:12128-1

  • ghostscript AlmaLinux 10 10.02.1-16.el10_2.3
  • libgs AlmaLinux 10 10.02.1-16.el10_2.3
  • ghostscript-tools-fonts AlmaLinux 10 10.02.1-16.el10_2.3
  • ghostscript-tools-dvipdf AlmaLinux 10 10.02.1-16.el10_2.3
  • ghostscript-tools-printing AlmaLinux 10 10.02.1-16.el10_2.3
  • ghostscript AlmaLinux 8 9.27-19.el8_10
  • libgs AlmaLinux 8 9.27-19.el8_10
  • ghostscript-x11 AlmaLinux 8 9.27-19.el8_10

almalinux advisories ALSA-2026:83551ALSA-2026:83552ALSA-2026:83553

  • ghostscript Rocky Linux 10 10.02.1-16.el10_2.3
  • ghostscript Rocky Linux 9 9.54.0-19.el9_8.3
  • ghostscript Rocky Linux 8 9.27-19.el8_10

rocky linux advisories RLSA-2026:83551RLSA-2026:83553RLSA-2026:83552

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-103226 updated cvss 7.8

ghostscript: ghostscript: stack-based buffer overflow in pdfwrite via crafted font data

  • Red Hat Enterprise Linux 6 ghostscript, ghostscript-gtk Red Hat Enterprise Linux 7 libgs, ghostscript, ghostscript-gtk, ghostscript-cups
    affected: workaround, no fix available
  • Red Hat Enterprise Linux AppStream (v. 8) ghostscript 9.27-19.el8_10
    fixed: vendor fix RHSA-2026:83552
  • Red Hat Enterprise Linux AppStream (v. 9) ghostscript 9.54.0-19.el9_8.3
    fixed: vendor fix RHSA-2026:83553
  • Red Hat Enterprise Linux AppStream (v. 10) ghostscript 10.02.1-16.el10_2.3
    fixed: vendor fix RHSA-2026:83551
  • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) ghostscript 9.54.0-19.el9_8.3
    fixed: vendor fix RHSA-2026:83553
  • Red Hat Enterprise Linux AppStream (v. 8) libgs 9.27-19.el8_10, ghostscript-x11 9.27-19.el8_10 Red Hat Enterprise Linux AppStream (v. 9) libgs 9.54.0-19.el9_8.3, ghostscript-x11 9.54.0-19.el9_8.3, ghostscript-tools-fonts 9.54.0-19.el9_8.3, ghostscript-tools-dvipdf 9.54.0-19.el9_8.3, ghostscript-tools-printing 9.54.0-19.el9_8.3 Red Hat Enterprise Linux AppStream (v. 10) libgs 10.02.1-16.el10_2.3, ghostscript-tools-fonts 10.02.1-16.el10_2.3, ghostscript-tools-printing 10.02.1-16.el10_2.3 Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) ghostscript-tools-fonts 9.54.0-19.el9_8.3, ghostscript-tools-printing 9.54.0-19.el9_8.3 Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) ghostscript-tools-dvipdf 10.02.1-16.el10_2.3 Red Hat Enterprise Linux CRB (v. 8) ghostscript-tools-fonts 9.27-19.el8_10, ghostscript-tools-dvipdf 9.27-19.el8_10, ghostscript-tools-printing 9.27-19.el8_10
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
40 d ago

Exploit prediction

0.32% chance of exploitation in the next 30 days, higher than 25% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • bugs.ghostscript.com https://bugs.ghostscript.com/attachment.cgi?id=28495 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 4.0 5.3 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
CNA 3.1 6.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
CNA 3.0 6.3 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
CNA 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C
CNA 4.0 2.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CNA 3.1 6.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
CNA 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • Artifex Ghostscript

Classification

Weakness
  • CWE-121 Stack-based Buffer Overflow
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.