---
id: CVE-2026-46599
title: >-
  golang.org/x/image/tiff has excessive resource consumption in PackBits
  decompression
summary: >-
  golang.org/x/image/tiff has excessive resource consumption in PackBits
  decompression
severity: high
cvss: 7.5
cwe:
  - CWE-770
vendor: x
product: golang.org/x/image
ecosystem: go
affected:
  - golang.org/x/image < 0.41.0
patched:
  - golang.org/x/image 0.41.0
published: '2026-07-02'
updated: '2026-07-02'
source: GHSA
sourceUrl: 'https://github.com/advisories/GHSA-q675-qj96-32m9'
references:
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-46599'
  - url: 'https://go.dev/cl/759960'
  - url: 'https://go.dev/issue/79577'
  - url: 'https://groups.google.com/g/golang-announce/c/uhYX90BlBvI'
  - url: 'https://pkg.go.dev/vuln/GO-2026-5032'
  - url: 'https://github.com/advisories/GHSA-q675-qj96-32m9'
tags:
  - ghsa
  - go
epss: 0.0063
epssPercentile: 0.47898
ingestedAt: '2026-07-02T21:44:45.082Z'
---

## Overview

The TIFF decoder does not place a limit on the size of PackBits-compressed data. A maliciously-crafted image can exploit this to cause a small image (both in terms of pixel width/height and encoded size) to make the decoder decode large amounts of compressed data.

## Affected packages

- `golang.org/x/image < 0.41.0`

## Remediation

Upgrade to a patched release:

- `golang.org/x/image 0.41.0`