---
id: CVE-2026-4775
title: A flaw was found in the libtiff library
summary: >-
  A flaw was found in the libtiff library. A remote attacker could exploit a
  signed integer overflow vulnerability in the putcontig8bitYCbCr44tile function
  by providing a specially crafted TIFF file. This flaw can lead to an
  out-of-bounds …
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
published: '2026-03-24'
updated: '2026-06-25'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-4775'
references:
  - url: 'https://access.redhat.com/errata/RHSA-2026:12265'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:12271'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:14929'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:16055'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:19150'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:19363'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:19585'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:19586'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:19604'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:19608'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:19609'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:19657'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:19659'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:19702'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:20583'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:20585'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:20591'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:20592'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:24992'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:25096'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:25910'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/errata/RHSA-2026:30078'
    label: secalert@redhat.com
  - url: 'https://access.redhat.com/security/cve/CVE-2026-4775'
    label: secalert@redhat.com
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2450768'
    label: secalert@redhat.com
  - url: 'https://lists.debian.org/debian-lts-announce/2026/04/msg00016.html'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.00553
epssPercentile: 0.45089
ingestedAt: '2026-06-26T16:43:13.619Z'
---

## Overview

A flaw was found in the libtiff library. A remote attacker could exploit a signed integer overflow vulnerability in the putcontig8bitYCbCr44tile function by providing a specially crafted TIFF file. This flaw can lead to an out-of-bounds heap write due to incorrect memory pointer calculations, potentially causing a denial of service (application crash) or arbitrary code execution.

## Remediation

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