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TI-2026-30619 Aliases CVE-2026-42311GHSA-pwv6-vv43-88gr

Pillow: OOB Write with Invalid PSD Tile Extents (Integer Overflow)

Priority MEDIUM 44CWE-190Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 4 fixed, 7 without a fix

Attack profile from CVSS 4.0 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-190 and the CVSS impact.

Summary

Pillow is a Python imaging library. From version 10.3.0 to before version 12.2.0, processing a malicious PSD file could lead to memory corruption, potentially resulting in a crash or arbitrary code execution. This issue has been patched in version 12.2.0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0015 4th percentileScored 2026-11-07
Fix Partial Pillow (python-pillow): 12.2.0pillow (PyPI): 12.2.0Red Hat: 8 advisoriesRed Hat: 4 fixed, 7 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
python-pillowPillow10.3.0 to before 12.2.012.2.0Patch availableCNA
—pillow (PyPI)10.3.0 to before 12.2.012.2.0Patch availableGHSA-pwv6-vv43-88gr
  • Pillow Vendorpython-pillow Affected 10.3.0 to before 12.2.0 Fixed in 12.2.0 Patch available CNA
  • pillow (PyPI) Vendor— Affected 10.3.0 to before 12.2.0 Fixed in 12.2.0 Patch available GHSA-pwv6-vv43-88gr

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:python:pillow:*:*:*:*:*:*:*:*10.3.0 to before 12.2.0Vulnerablepython-pillow
  • cpe:2.3:a:python:pillow:*:*:*:*:*:*:*:* Versions 10.3.0 to before 12.2.0 Vulnerable ·python-pillow

Remediation

  • Fix · CNA Pillow (python-pillow) Fixed in 12.2.0
  • Fix · GHSA-pwv6-vv43-88gr pillow (PyPI) Fixed in 12.2.0 Advisory →

Red Hat 8 advisories

  • RHSA-2026:70969 Released 2026-09-23 · Red Hat rating Important
    Red Hat AI Inference 3.4.5 (spyre)
    • Red Hat AI Inference Server 3.4 registry.redhat.io/rhaii/vllm-spyre-rhel9
  • RHSA-2026:69464 Released 2026-09-21 · Red Hat rating Important
    Red Hat AI Inference 3.4.5 (spyre)
    • Red Hat AI Inference Server 3.4 registry.redhat.io/rhaii/vllm-spyre-rhel9
  • RHSA-2026:61628 Released 2026-08-31 · Red Hat rating Important
    Red Hat AI Inference Server Model Optimization Tools 3.2.2 (CUDA)
    • Red Hat AI Inference Server 3.2 registry.redhat.io/rhaiis/model-opt-cuda-rhel9
Show 5 more Red Hat advisories
  • RHSA-2026:60520 Released 2026-08-27 · Red Hat rating Critical
    RHOAI 3.4.4 - Red Hat OpenShift AI
    • Red Hat OpenShift AI 3.4 registry.redhat.io/rhoai/odh-automl-rhel9, registry.redhat.io/rhoai/odh-autorag-rhel9, registry.redhat.io/rhoai/odh-built-in-detector-rhel9 +47
  • RHSA-2026:57387 Released 2026-08-20 · Red Hat rating Important
    Red Hat AI Inference 3.4.4 (spyre)
    • Red Hat AI Inference Server 3.4 registry.redhat.io/rhaii/vllm-spyre-rhel9
  • RHSA-2026:16030 Released 2026-05-11 · Red Hat rating Important
    Red Hat AI Inference Server 3.3.3 (CUDA)
    • Red Hat AI Inference Server 3.3 registry.redhat.io/rhaiis/vllm-cuda-rhel9
  • RHSA-2026:16009 Released 2026-05-11 · Red Hat rating Important
    Red Hat AI Inference Server 3.3.3 (ROCm)
    • Red Hat AI Inference Server 3.3 registry.redhat.io/rhaiis/vllm-rocm-rhel9
  • RHSA-2026:16008 Released 2026-05-11 · Red Hat rating Important
    Red Hat AI Inference Server Model Optimization Tools 3.3.3 (CUDA)
    • Red Hat AI Inference Server 3.3 registry.redhat.io/rhaiis/model-opt-cuda-rhel9

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Exploit IntelligenceAffectedNo fix planned: Will not fix
OpenShift LightspeedAffectedNo fix yet
Red Hat AI Inference ServerAffectedNo fix planned: Will not fix
Red Hat Ansible Automation Platform 2AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux AI (RHEL AI) 3AffectedNo fix yet
Red Hat OpenShift AI (RHOAI)AffectedNo fix yet
Red Hat Quay 3AffectedNo fix yet
Red Hat AI Inference Server 3.2Fixed RHSA-2026:61628
Red Hat AI Inference Server 3.3Fixed RHSA-2026:16008, RHSA-2026:16009, RHSA-2026:16030
Red Hat AI Inference Server 3.4Fixed RHSA-2026:57387, RHSA-2026:69464, RHSA-2026:70969
Red Hat OpenShift AI 3.4Fixed RHSA-2026:60520
Not affected: 11 products
  • Lightspeed Core
  • OpenShift Lightspeed
  • Red Hat AI Inference Server
  • Red Hat Ansible Automation Platform 2
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux AI (RHEL AI) 3
  • Red Hat OpenShift AI (RHOAI)
  • Red Hat OpenShift AI 3.4
  • Red Hat Quay 3
  • Red Hat Satellite 6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-42311
  2. 2026-10-03 Alias added: GHSA-pwv6-vv43-88gr

References

Patch 3

Advisory 1

Other 3

  • TI-2026-76627 Out-of-bounds read in Pillow TIFF encoder ColorMap handling CVSS 4.0HIGH 8.8
  • TI-2026-76625 Quadratic-time denial of service in Pillow PDF save_all CVSS 4.0HIGH 8.7
  • TI-2026-76605 NULL pointer dereference in Pillow's Image.merge function CVSS 4.0HIGH 8.7
  • TI-2026-76604 Out-of-bounds read in Pillow TIFF decoding leaks heap memory CVSS 4.0HIGH 8.8
  • TI-2026-76602 Double free in Pillow ImagingScaleAffine on allocation failure CVSS 4.0HIGH 8.7
  • TI-2026-76600 GIF seek in Pillow keeps rejected size, allowing denial of service CVSS 4.0HIGH 8.7
See all 110 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences