---
id: CVE-2026-52492
title: >-
  An integer overflow in the libtiff rgb2ycbcr utility's cvtRaster() function
  when computing strip buffer sizes can result in an undersized heap allocation
  and subsequent heap-based buffer overflow during YCbCr conversion of a crafted
  TIFF…
summary: >-
  An integer overflow in the libtiff rgb2ycbcr utility's cvtRaster() function
  when computing strip buffer sizes can result in an undersized heap allocation
  and subsequent heap-based buffer overflow during YCbCr conversion of a crafted
  TIFF…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-190
  - CWE-787
published: '2026-08-24'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T16:03:22.897'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-52492'
references:
  - url: 'https://gist.github.com/okyfh/fbc5a37cade358361d80f6a498560cfa'
    label: cve@mitre.org
  - url: >-
      https://gitlab.com/libtiff/libtiff/-/commit/94affc5cf54111312f9891eb77accb93eebc28d7
    label: cve@mitre.org
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52492.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-52492'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2523134'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-52492'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-52492'
  - url: 'https://access.redhat.com/errata/RHSA-2026:53467'
tags:
  - nvd
  - csaf
  - vex
  - red-hat
epss: 0.00188
epssPercentile: 0.07454
ingestedAt: '2026-09-09T16:14:05.515Z'
vendor: Red Hat
product: Red Hat Enterprise Linux 7
affected:
  - enterprise_linux 10
  - enterprise_linux 6
  - enterprise_linux 7
  - hardened_images
patched:
  - hardened_images
scores:
  nvd: 7.8
  vendor: 7.3
---

## Overview

An integer overflow in the libtiff rgb2ycbcr utility's cvtRaster() function when computing strip buffer sizes can result in an undersized heap allocation and subsequent heap-based buffer overflow during YCbCr conversion of a crafted TIFF image

## Remediation

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

## Vendor advisories

- **RHSA-2026:53467** · Red Hat · fixed in: Red Hat Hardened Images · released 2026-08-11 · [advisory](https://access.redhat.com/errata/RHSA-2026:53467)
- **Red Hat VEX** · Important · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7 · updated 2026-09-21 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-52492.json)