CVE-2026-46599

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

• https://go.dev/cl/759960
• https://go.dev/issue/79577
• https://groups.google.com/g/golang-announce/c/uhYX90BlBvI
• https://pkg.go.dev/vuln/GO-2026-5032