CVE-2026-39919: Ghostscript before 10.08.0 contains a heap-based buffer overflow vulnerability in the JPEG 2000 output adapter

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CRITICAL 9.8REMOTE

CVE-2026-39919 is a critical-severity flaw (CVSS 9.8) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Ghostscript before 10.08.0 contains a heap-based buffer overflow vulnerability in the JPEG 2000 output adapter (base/sjpx_openjpeg.c) that allows attackers to cause memory corruption by supplying a crafted PDF containing a JPEG 2000 image with mismatched component subsampling factors. When image components declare different subsampling values, the non-samescale sub-byte-depth output path allocates a row buffer sized for packed output but writes a

Why this priority

Critical severity
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.2% (top 33%)
CISA exploited list	No
Weakness	CWE-122
Published	2026-09-15
Last modified	2026-09-24

Publisher (CNA): VulnCheck

Last updated 2026-09-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Timeline

2026-09-15 15:17 UTCPublished CVE record published
2026-09-24 21:04 UTCUpdated Record last modified

Exact fixes by distribution

Fedora 46 · ddnet · FIXED · 20.2-1.fc46 · FEDORA-2026-6991b4ab14 · source

sudo dnf upgrade --advisory=FEDORA-2026-6991b4ab14

Fedora ELN · libplacebo · FIXED · 7.360.1-5.eln159 · FEDORA-2026-92226f221e · source

sudo dnf upgrade --advisory=FEDORA-2026-92226f221e

Debian 12 · ghostscript · NO FIX YET

Debian 13 · ghostscript · FIXED · 10.05.1~dfsg-1+deb13u2

sudo apt update && sudo apt install --only-upgrade ghostscript dpkg --compare-versions "$(dpkg-query -W -f='${Version}' ghostscript)" ge "10.05.1~dfsg-1+deb13u2" && echo PATCHED || echo STILL-VULNERABLE

RHEL 10 · ghostscript · FIXED · ghostscript-10.02.1-16.el10_2.1

sudo dnf upgrade --advisory=RHSA-2026:74464 rpm -q ghostscript

RHEL 8 · ghostscript · FIXED · ghostscript-9.27-18.el8_10

sudo dnf upgrade --advisory=RHSA-2026:76877 rpm -q ghostscript

RHEL 9 · ghostscript · FIXED · ghostscript-9.54.0-19.el9_8.1

sudo dnf upgrade --advisory=RHSA-2026:74457 rpm -q ghostscript

RHEL 6 · ghostscript · DEFERRED

RHEL 7 · ghostscript · DEFERRED

Alpine 3.23 · ghostscript · FIXED · ghostscript-10.08.0-r0

apk add --upgrade ghostscript apk info -v ghostscript

Alpine 3.24 · ghostscript · FIXED · ghostscript-10.08.0-r0

apk add --upgrade ghostscript apk info -v ghostscript

Amazon Linux 2023 · see advisory · FIXED · ALAS2023-2026-3294 · source

sudo dnf update --advisory=ALAS2023-2026-3294

Amazon Linux 2 · see advisory · FIXED · ALAS2-2026-4034 · source

sudo yum update --advisory=ALAS2-2026-4034

Advisories and coverage

Official advisories

Amazon Linux 2023 ALAS: ALAS2023-2026-3294 (important): ghostscript 2026-10-24
Amazon Linux 2 ALAS: ALAS2-2026-4034 (important): ghostscript 2026-10-24

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-39919?

No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.

Is CVE-2026-39919 being exploited?

CVE-2026-39919 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-39919 affect?

CVE-2026-39919 affects affected software. Severity is critical (CVSS 9.8). Ghostscript before 10.08.0 contains a heap-based buffer overflow vulnerability in the JPEG 2000 output adapter (base/sjpx_openjpeg.c) that allows attackers to cause memory corruption by supplying a crafted PDF containing a JPEG 2000 image w

How urgent is CVE-2026-39919?

Priority 59/100. Critical severity; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

Software pages

Ghostscript vulnerabilities

References

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