---
id: CVE-2026-112404
title: >-
  Pillow: OOB read in TiffDecode.c tile and RGBA paths leaks heap memory into
  pixels
summary: >-
  Pillow is a Python imaging library. From 8.1.0 until 13.0.0, Pillow's TIFF
  tile and RGBA decode paths can read beyond row data produced by libtiff. In
  _decodeTile and the RGBA unpacker path, when Pillow and libtiff interpret
  duplicated P…
severity: high
cvss: 8.8
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N'
cvssSource: cna
cwe:
  - CWE-126
vendor: python-pillow
product: Pillow
affected:
  - 'Pillow >= 8.1.0, < 13.0.0'
published: '2026-10-19'
updated: '2026-10-19'
sourceUpdated: '2026-10-19T21:27:56.705Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-112404'
references:
  - url: >-
      https://github.com/python-pillow/Pillow/security/advisories/GHSA-c6hw-5grf-ff96
    label: >-
      https://github.com/python-pillow/Pillow/security/advisories/GHSA-c6hw-5grf-ff96
  - url: >-
      https://github.com/python-pillow/Pillow/commit/1d4773e6cea0c4a2814e6d4cdc099bbcf56da6ce
    label: >-
      https://github.com/python-pillow/Pillow/commit/1d4773e6cea0c4a2814e6d4cdc099bbcf56da6ce
  - url: 'https://github.com/python-pillow/Pillow/releases/tag/13.0.0'
    label: 'https://github.com/python-pillow/Pillow/releases/tag/13.0.0'
tags:
  - cve.org
ingestedAt: '2026-10-19T21:43:56.116Z'
---

## Overview

Pillow is a Python imaging library. From 8.1.0 until 13.0.0, Pillow's TIFF tile and RGBA decode paths can read beyond row data produced by libtiff. In _decodeTile and the RGBA unpacker path, when Pillow and libtiff interpret duplicated PhotometricInterpretation or BitsPerSample tags differently, Pillow does not verify that the required input row fits inside the row libtiff produced, while the strip path has this validation. Loading pixels from such a crafted TIFF can expose adjacent heap data in output pixels or crash the process. This issue is fixed in version 13.0.0.

## Affected

- `Pillow >= 8.1.0, < 13.0.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.