CVE-2026-46599

HIGH

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

Title source: cna

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.

References (4)

Core 4

Core References

https://go.dev/issue/79577

https://go.dev/cl/759960

https://groups.google.com/g/golang-announce/c/uhYX90BlBvI

https://pkg.go.dev/vuln/GO-2026-5032

Scores

CVSS v3 7.5

EPSS 0.0036

EPSS Percentile 27.4%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable yes

Technical Impact partial

Details

CWE

CWE-770

Status published

Products (1)

golang.org/x/image/golang.org/x/image/tiff < 0.41.0

Published May 29, 2026

Tracked Since May 30, 2026