Description
Pillow is a Python imaging library. From 5.1.0 until 13.0.0, Pillow's PdfParser.get_value() can recurse without a limit while reading nested PDF objects. The parser follows attacker-controlled arrays and dictionaries when an existing PDF is opened for append. An attacker can provide a deeply nested PDF to an application that saves an image with PDF append enabled. This can raise an uncaught RecursionError or terminate the worker, causing denial of service. This issue is fixed in version 13.0.0.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| python-pillow | Pillow | >= 5.1.0, < 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 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | python-pillow +4 | 5.1.1-33.el8_10 | RHSA-2026:92639 |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Satellite Capsule 6 | openvox-agent | 8.31.1-1.el9sat | RHSA-2026:95657, RHSA-2026:95656, RHSA-2026:95655 |
| Red Hat Satellite Capsule 6 | openvox-server | 8.17.0-1.el9sat | RHSA-2026:95657, RHSA-2026:95656, RHSA-2026:95655 |
| Red Hat Satellite Capsule 6 | python-brotli +1 | 1.2.1-1.el8pc | RHSA-2026:95656, RHSA-2026:95655 |
| Red Hat Satellite Capsule 6 | python-django +1 | 4.2.30-2.el8pc | RHSA-2026:95656, RHSA-2026:95655 |
| Red Hat Satellite Capsule 6 | python-gitpython +1 | 3.2.1-1.el8pc | RHSA-2026:95656, RHSA-2026:95655 |
| Red Hat Satellite Capsule 6 | python-pillow +1 | 13.0.0-1.el8pc | RHSA-2026:95656, RHSA-2026:95655 |
| Red Hat Satellite Capsule 6 | python-pyyaml +1 | 6.0.1-1.el8pc | RHSA-2026:95655 |
| Red Hat Satellite Capsule 6 | python-urllib3 +1 | 2.8.0-1.el8pc | RHSA-2026:95656, RHSA-2026:95655 |
| Red Hat Satellite Capsule 6 | python3.12-brotli | 1.2.1-1.el9pc | RHSA-2026:95657, RHSA-2026:92861 |
| Red Hat Satellite Capsule 6 | python3.12-django | 4.2.30-3.el9pc | RHSA-2026:95657, RHSA-2026:92861 |
| Red Hat Satellite Capsule 6 | python3.12-gitpython | 3.2.1-1.el9pc | RHSA-2026:95657, RHSA-2026:92861 |
| Red Hat Satellite Capsule 6 | python3.12-pillow | 13.0.0-1.el9pc | RHSA-2026:95657, RHSA-2026:92861 |
| Red Hat Satellite Capsule 6 | python3.12-pulp-ansible | 1:0.28.10-1.el9pc | RHSA-2026:92861 |
| Red Hat Satellite Capsule 6 | python3.12-urllib3 | 2.8.0-1.el9pc | RHSA-2026:95657, RHSA-2026:92861 |
| Red Hat Satellite 6 | openvox-agent | 8.31.1-1.el9sat | RHSA-2026:95657, RHSA-2026:95656, RHSA-2026:95655 |
| Red Hat Satellite 6 | openvox-server | 8.17.0-1.el9sat | RHSA-2026:95657, RHSA-2026:95656, RHSA-2026:95655 |
| Red Hat Satellite 6 | python-brotli +1 | 1.2.1-1.el8pc | RHSA-2026:95656, RHSA-2026:95655 |
| Red Hat Satellite 6 | python-django +1 | 4.2.30-2.el8pc | RHSA-2026:95656, RHSA-2026:95655 |
| Red Hat Satellite 6 | python-gitpython +1 | 3.2.1-1.el8pc | RHSA-2026:95656, RHSA-2026:95655 |
| Red Hat Satellite 6 | python-pillow +1 | 13.0.0-1.el8pc | RHSA-2026:95656, RHSA-2026:95655 |
| Red Hat Satellite 6 | python-pyyaml +1 | 6.0.1-1.el8pc | RHSA-2026:95655 |
| Red Hat Satellite 6 | python-urllib3 +1 | 2.8.0-1.el8pc | RHSA-2026:95656, RHSA-2026:95655 |
| Red Hat Satellite 6 | python3.12-brotli | 1.2.1-1.el9pc | RHSA-2026:95657, RHSA-2026:92861 |
| Red Hat Satellite 6 | python3.12-django | 4.2.30-3.el9pc | RHSA-2026:95657, RHSA-2026:92861 |
| Red Hat Satellite 6 | python3.12-gitpython | 3.2.1-1.el9pc | RHSA-2026:95657, RHSA-2026:92861 |
| Red Hat Satellite 6 | python3.12-pillow | 13.0.0-1.el9pc | RHSA-2026:95657, RHSA-2026:92861 |
| Red Hat Satellite 6 | python3.12-pulp-ansible | 1:0.28.10-1.el9pc | RHSA-2026:92861 |
| Red Hat Satellite 6 | python3.12-urllib3 | 2.8.0-1.el9pc | RHSA-2026:95657, RHSA-2026:92861 |
| Red Hat Satellite 6 | yggdrasil-worker-forwarder | 0.1.1-1.el9sat | RHSA-2026:92861 |
| RHEL 8.8 TUS | python-pillow +1 | 5.1.1-20.el8_8.2 | RHSA-2026:98109 |
| RHEL 8.8 E4S | python-pillow +1 | 5.1.1-20.el8_8.2 | RHSA-2026:98109 |
| RHEL 8.6 EUS Long Life | python-pillow +1 | 5.1.1-20.el8_6.2 | RHSA-2026:98111 |
| RHEL 8.6 AUS | python-pillow +1 | 5.1.1-20.el8_6.2 | RHSA-2026:98111 |
| RHEL 8.4 EUS Long Life | python-pillow +1 | 5.1.1-15.el8_4.3 | RHSA-2026:98120 |
| RHEL 8.4 AUS | python-pillow +1 | 5.1.1-15.el8_4.3 | RHSA-2026:98120 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | python3-pillow +3 | 5.1.1-33.el8_10 | ALSA-2026:92639 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | python-pillow | 5.1.1-33.el8_10 | RLSA-2026:92639 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | python-Pillow | 7.2.0-150300.3.33.1 | SUSE-SU-2026:5038-1 |
| 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 Leap 16.0 | python-Pillow | 11.3.0-160000.9.1 | openSUSE-SU-2026:22246-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | python3-pillow +3 | 5.1.1-33.el8_10 | ELSA-2026-92639 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | open-webui | 0.12.3-r6 | — |
| Wolfi rolling | py3.10-pillow | No fix yet | — |
| Wolfi rolling | py3.11-pillow +2 | 13.0.0-r0 | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | pillow | >= 5.1.0, < 13.0.0 | 13.0.0 | GHSA-254f-3936-288h |
Advisories 17
- RHSA-2026:98120 Red Hat Security Advisory: python-pillow security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:95656 Red Hat Security Advisory: Satellite 6.17 security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:95655 Red Hat Security Advisory: Satellite 6.16 EUS security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:98109 Red Hat Security Advisory: python-pillow security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:95657 Red Hat Security Advisory: Satellite 6.18 security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:98111 Red Hat Security Advisory: python-pillow security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:92639 Red Hat Security Advisory: python-pillow security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:92861 Red Hat Security Advisory: Satellite 6.19 security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- USN-9064-1 pillow vulnerabilities Ubuntu Security Notices (USN) · Nov 13, 2026
- WID-SEC-2026-4243 Red Hat Enterprise Linux (pillow and aspell): Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 12, 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
- SUSE-SU-2026:5038-1 Security update for python-Pillow SUSE / openSUSE Security Updates · Nov 3, 2026
- RLSA-2026:92639 Important: python-pillow security update Rocky Linux Security Advisories · Oct 30, 2026
- ALSA-2026:92639 Important: python-pillow security update AlmaLinux Security Advisories · Oct 30, 2026
- ELSA-2026-92639 Important: python-pillow security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Oct 30, 2026