Resource exhaustion in Golang.org/x/image Golang.org/x/image/tiff

CVE-2026-46599

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.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.006 (48.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 48.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-46599: held from 0.004 to 0.006.

EPSS over last 30 days · oldest: 0.004 · newest: 0.006 · change: +0.003

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-46599?
CVE-2026-46599 is a high-severity vulnerability in Golang.org/x/image Golang.org/x/image/tiff, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-05-29.
How severe is CVE-2026-46599?
High severity. CVSS v3 base score is 7.5 out of 10.