CVE-2026-46599

7.5 HIGH

The TIFF decoder does not place a limit on the size of PackBits-compressed data

Published: 2026-05-29 · Last updated: 2026-06-01

Severity and scoring

CVSS: 7.5 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE: CWE-770

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.

Source: NVD

References

[NVD]https://nvd.nist.gov/vuln/detail/CVE-2026-46599
[Other]https://go.dev/cl/759960
[Other]https://go.dev/issue/79577
[Other]https://groups.google.com/g/golang-announce/c/uhYX90BlBvI
[Other]https://pkg.go.dev/vuln/GO-2026-5032

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