CVE-2026-112895
Fixed in a distro release EPSS <1%CVSS 8.7
Pillow is a Python imaging library. From 5.1.0 until 13.0.0, Pillow can exhaust resources while parsing an existing PDF during an append operation. PdfParser follows page-tree child references without cycle or duplication tracking and follows previous-trailer chains with only an exact repeated-offset guard, so deep or cyclic page trees and long chains of unique trailer offsets can exhaust the Python stack. Repeated non-cyclic /Kids references can also cause super-linear CPU and memory use. An attacker can supply such a PDF to an application that calls Image.save with PDF append enabled. This can raise an uncaught RecursionError or consume excessive CPU and memory before output is written, causing denial of service. This issue is fixed in version 13.0.0.
Products: python-pillow Pillow
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| PyPI | pillow | 13.0.0 |
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Chainguard | apache-beam-python-3.11-sdk | 2.77.0-r2 |
| Chainguard | apache-beam-python-3.12-sdk | 2.77.0-r5 |
| Chainguard | apache-beam-python-3.13-sdk | 2.77.0-r5 |
| Chainguard | apache-beam-python-3.14-sdk | 2.77.0-r5 |
| Chainguard | gftools | 0.10.4-r1 |
| Chainguard | jupyter-all-spark-notebook | 7.6.1_git20261016-r1 |
| Chainguard | kserve-storage-controller | 0.21.0-r9 |
| Chainguard | kserve-xgbserver | 0.21.0-r3 |
| Chainguard | kubeflow-pipelines-visualization-server | 2.17.2-r7 |
| Chainguard | label-studio | 1.23.2-r2 |
| Chainguard | mlflow | no fix |
| Chainguard | mlflow-fips | no fix |
| Chainguard | nemo-gym | 0.5.0_rc0_git20260729-r6 |
| Chainguard | nemo-rl-cuda-13.0 | 0.7.0-r11 |
| Chainguard | nemo-rl-cuda-13.0-automodel | 0.7.0-r11 |
| Chainguard | nemo-rl-cuda-13.0-mcore | 0.7.0-r11 |
| Chainguard | nemo-rl-cuda-13.0-sglang | 0.7.0-r11 |
| Chainguard | nemo-rl-cuda-13.0-vllm | 0.7.0-r11 |
| Chainguard | nemo-skills | no fix |
| Chainguard | netbox | no fix |
| Chainguard | netbox-fips | no fix |
| Chainguard | netbox-fips | 4.7.3-r1 |
| Chainguard | open-webui | no fix |
| Chainguard | open-webui | 0.12.3-r6 |
| Chainguard | openstack-horizon-2025.2 | 25.5.2_git20260914-r12 |
| Chainguard | openstack-horizon-2025.2-fips | no fix |
| Chainguard | openstack-horizon-2025.2-fips | 25.5.2_git20260914-r10 |
| Chainguard | openstack-horizon-2026.1 | no fix |
| Chainguard | openstack-horizon-2026.1-fips | 25.7.3_git20261019-r1 |
| Chainguard | pgadmin4 | 9.18-r6 |
| Chainguard | pgadmin4-fips | 9.18-r8 |
| Chainguard | py3.10-pillow | no fix |
| Chainguard | py3.10-pytorch-cuda-12.6 | no fix |
| Chainguard | py3.10-pytorch-cuda-13.0 | no fix |
| Chainguard | py3.10-pytorch-cuda-13.2 | no fix |
| Chainguard | py3.10-vllm-cuda-12.4 | no fix |
| Chainguard | py3.11-pillow | 13.0.0-r0 |
| Chainguard | py3.11-pytorch-cuda-13.0 | 2.14.1-r2 |
| Chainguard | py3.12-pillow | 13.0.0-r0 |
| Chainguard | py3.12-pytorch-cuda-13.0 | 2.14.1-r2 |
| Chainguard | py3.13-pillow | 13.0.0-r0 |
| Chainguard | py3.13-pytorch-cuda-13.0 | 2.14.1-r2 |
| Chainguard | py3.14-pytorch-cuda-13.0 | 2.14.1-r2 |
| Chainguard | superset-5.0 | 5.0.0-r45 |
| Chainguard | superset-6.0 | 6.0.0-r21 |
| Chainguard | superset-6.1 | 6.1.0-r16 |
| Chainguard | superset-6.1 | no fix |
| Chainguard | superset-fips-6.1 | 6.1.0-r11 |
| Chainguard | tensorflow-cpu-jupyter | 2.21.0-r13 |
| Chainguard | tensorflow-gpu-jupyter | 2.21.0-r13 |
| Debian 12 | pillow | no fix |
| Debian 13 | pillow | no fix |
| Debian 14 | pillow | no fix |
| Ubuntu 22.04 LTS | pillow | no fix |
| Ubuntu 24.04 LTS | pillow | no fix |
| Ubuntu 26.04 LTS | pillow | no fix |
| Ubuntu 26.10 | pillow | no fix |
| Ubuntu Pro 14.04 LTS | pillow | no fix |
| Ubuntu Pro 16.04 LTS | pillow | no fix |
| Ubuntu Pro 18.04 LTS | pillow | no fix |
| Ubuntu Pro 20.04 LTS | pillow | no fix |
| Ubuntu Pro 20.04 LTS | pillow-python2 | no fix |
| Wolfi | gftools | 0.10.4-r1 |
| Wolfi | kserve-storage-controller | 0.21.0-r9 |
| Wolfi | kubeflow-pipelines-visualization-server | 2.17.2-r7 |
| Wolfi | mlflow | no fix |
| Wolfi | open-webui | 0.12.3-r6 |
| Wolfi | open-webui | no fix |
| Wolfi | py3.10-pillow | no fix |
| Wolfi | py3.11-pillow | 13.0.0-r0 |
| Wolfi | py3.12-pillow | 13.0.0-r0 |
| Wolfi | py3.13-pillow | 13.0.0-r0 |
| Wolfi | superset-6.0 | 6.0.0-r21 |
| Wolfi | superset-6.1 | 6.1.0-r16 |
| Wolfi | superset-6.1 | no fix |