CVE-2026-39919
Published: September 15th, 2026
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 full byte per output column regardless of bit depth, overflowing the allocation and corrupting internal chunk-allocator metadata to achieve code execution.
CRITICAL
CVSS v3: 9.8
CVSS v3: 9.8
Status
| DocFilters Release | Package | State | Justification | Comment |
|---|---|---|---|---|
| daily | openjpeg (2.5.3) | Needs Triage | ||
| 26.3 | openjpeg (2.5.3) | Needs Triage | ||
| 26.2 | openjpeg (2.5.3) | Needs Triage | ||
| 26.1 | openjpeg (2.5.3) | Needs Triage | ||
| 25.4 | openjpeg (2.5.3) | Needs Triage | ||
| 25.3 | openjpeg (2.5.3) | Needs Triage | ||
| 25.2 | openjpeg (2.5.3) | Needs Triage | ||
| 25.1 | openjpeg (2.5.0) | Needs Triage | ||
| 24.4 | openjpeg (2.5.0) | Needs Triage | ||
| 24.4.0 | openjpeg (2.5.0) | Needs Triage | ||
| 24.3 | openjpeg (2.5.0) | Needs Triage | ||
| 24.2 | openjpeg (2.5.0) | Needs Triage | ||
| 24.1 | openjpeg (2.5.0) | Needs Triage | ||
| 23.3 | openjpeg (2.5.0) | Needs Triage | ||
| 23.2 | openjpeg (2.4.0) | Needs Triage | ||
| 23.1 | openjpeg (2.4.0) | Needs Triage | ||
| 22.4 | openjpeg (2.4.0) | Needs Triage | ||
| 22.3 | openjpeg (2.4.0) | Needs Triage | ||
| 22.2 | openjpeg (2.4.0) | Needs Triage | ||
| 22.1 | openjpeg (2.4.0) | Needs Triage | ||
| 21.11 | openjpeg (2.4.0) | Needs Triage | ||
| 21.8 | openjpeg (2.4.0) | Needs Triage | ||
| 21.5.0 | openjpeg (2.4.0) | Needs Triage | ||
| 21.2.0 | openjpeg (2.4.0) | Needs Triage | ||
| 11.4.19.3667 | openjpeg (2.3.1) | Needs Triage | ||
| 11.4.18.3599 | openjpeg (2.3.1) | Needs Triage | ||
| 11.4.16.3445 | openjpeg (2.3.1) | Needs Triage | ||
| 11.4.15.3368 | openjpeg (2.3.1) | Needs Triage | ||
| 11.4.14.3263 | openjpeg (2.3.0) | Needs Triage | ||
| 11.4.13.3179 | openjpeg (2.3.0) | Needs Triage | ||
| 11.4.12.3054 | openjpeg (2.3.0) | Needs Triage | ||
| 11.4.11.3040 | openjpeg (2.3.0) | Needs Triage | ||
| 11.4.11.2990 | openjpeg (2.3.0) | Needs Triage | ||
| 11.4.10.2934 | openjpeg (2.3.0) | Needs Triage | ||
| 11.4.9.2878 | openjpeg (2.3.0) | Needs Triage |
Severity score breakdown
Attack Complexity
LOW
Attack Vector
NETWORK
Availability Impact
HIGH
Base Score
9.8
Base Severity
CRITICAL
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Privileges Required
NONE
Scope
UNCHANGED
User Interaction
NONE
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Version
3.1