Description
Pillow is a Python imaging library. From 9.4.0 until 13.0.0, ImagingJpegEncode() in src/libImaging/JpegEncode.c can call jpeg_write_marker() for a JPEG COM comment when an ICC profile has exactly filled the 65536-byte encoder buffer. libjpeg writes one byte before checking the exhausted free_in_buffer counter, which then wraps and permits the attacker-controlled comment and subsequent compressed image data to overwrite adjacent heap memory. Re-saving an untrusted image as JPEG while preserving its ICC profile and forwarded comment can crash the process and may enable code execution in suitable runtime and heap layouts. This issue is fixed in version 13.0.0.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| python-pillow | Pillow | >= 9.4.0, < 13.0.0 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | pillow | No fix yet | — |
| Debian 13 | pillow | No fix yet | — |
| Debian 12 | pillow | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | pillow | 12.3.0-1ubuntu2 | USN-9064-1 |
| Ubuntu 26.04 LTS | pillow | 12.1.1-2ubuntu1.5 | USN-9064-1 |
| Ubuntu 24.04 LTS | pillow | 10.2.0-1ubuntu1.5 | USN-9064-1 |
| Ubuntu 22.04 LTS | pillow | 9.0.1-1ubuntu0.7 | USN-9064-1 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | pillow | 7.0.0-4ubuntu0.9+esm2 | USN-9064-1 |
| Ubuntu Pro 20.04 LTS | pillow-python2 | No fix yet | — |
| Ubuntu Pro 18.04 LTS | pillow | 5.1.0-1ubuntu0.8+esm3 | USN-9064-1 |
| Ubuntu Pro 16.04 LTS | pillow | 3.1.2-0ubuntu1.6+esm4 | USN-9064-1 |
| Ubuntu Pro 14.04 LTS | pillow | 2.3.0-1ubuntu3.4+esm6 | USN-9064-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | python-Pillow | 9.5.0-150400.5.28.1 | SUSE-SU-2026:5194-1 |
| SLES 15 SP5 | python-Pillow | 9.5.0-150400.5.28.1 | SUSE-SU-2026:5194-1 |
| SLES 15 SP4 | python-Pillow | 9.5.0-150400.5.28.1 | SUSE-SU-2026:5194-1 |
| SLES 3 | python-Pillow | 9.5.0-150400.5.28.1 | SUSE-SU-2026:5194-1 |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | python-Pillow | 11.3.0-160000.9.1 | SUSE-SU-2026:24656-1 |
| SLES for SAP 15 SP6 | python-Pillow | 9.5.0-150400.5.28.1 | SUSE-SU-2026:5194-1 |
| SLES for SAP 15 SP5 | python-Pillow | 9.5.0-150400.5.28.1 | SUSE-SU-2026:5194-1 |
| SLES for SAP 15 SP4 | python-Pillow | 9.5.0-150400.5.28.1 | SUSE-SU-2026:5194-1 |
| SLES 16.0 | python-Pillow | 11.3.0-160000.9.1 | SUSE-SU-2026:24656-1 |
| SLE HPC 15 SP5 | python-Pillow | 9.5.0-150400.5.28.1 | SUSE-SU-2026:5194-1 |
| SLE HPC 15 SP4 | python-Pillow | 9.5.0-150400.5.28.1 | SUSE-SU-2026:5194-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | python-Pillow | 13.0.0-2.1 | openSUSE-SU-2026:12251-1 |
| openSUSE Leap 16.0 | python-Pillow | 11.3.0-160000.9.1 | openSUSE-SU-2026:22246-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | python3-pillow +2 | 9.4.0-2.amzn2023.0.12 | ALAS2023-2026-3411 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | open-webui +1 | No fix yet | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
GitHub 1 repository
-
paktiko1986/CVE-2026-96778-pillow ★ 0 · Oct 28, 2026
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | pillow | >= 9.4.0, < 13.0.0 | 13.0.0 | GHSA-g7cr-3p24-7wf7 |
Advisories 6
- USN-9064-1 pillow vulnerabilities Ubuntu Security Notices (USN) · Nov 13, 2026
- SUSE-SU-2026:24656-1 Security update for python-Pillow SUSE / openSUSE Security Updates · Nov 12, 2026
- SUSE-SU-2026:5194-1 Security update for python-Pillow SUSE / openSUSE Security Updates · Nov 12, 2026
- openSUSE-SU-2026:22246-1 Security update for python-Pillow SUSE / openSUSE Security Updates · Nov 11, 2026
- ALAS2023-2026-3411 Important: python-pillow security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Nov 9, 2026
- openSUSE-SU-2026:12251-1 python313-Pillow-13.0.0-2.1 on GA media SUSE / openSUSE Security Updates · Oct 24, 2026