CVE-2026-46599

Excessive resource consumption in PackBits decompression in golang.org/x/image/tiff

Published May 29, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-q675-qj96-32m9 golang.org/x/image/tiff has excessive resource consumption in PackBits decompression
History
Type Values Removed Values Added
Weaknesses CWE-400
Type Values Removed Values Added
Weaknesses CWE-770
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Golang
Golang image
Vendors & Products Golang
Golang image
Type Values Removed Values Added
Weaknesses CWE-400
Type Values Removed Values Added
Description 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.
Title Excessive resource consumption in PackBits decompression in golang.org/x/image/tiff
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
Go
Published
Updated
Jun 1, 2026, 2:44 PM
Reserved
May 15, 2026, 5:35 PM
Status
Deferred
Published
May 29, 2026, 8:16 PM
Modified
Jul 22, 2026, 6:10 AM