Vulnerability · Published May 29, 2026 · Assigned by Go
CVE-2026-46599Excessive resource consumption in PackBits decompression in golang.org/x/image/tiff
High 7.5
In plain English
A high-severity resource allocation without limits in golang.org/x/image/tiff from golang.org/x/image. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 29% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.4%top 70.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | golang-golang-x-image | no fix listed | DEBIAN-CVE-2026-46599 |
| Debian:13 | golang-golang-x-image | no fix listed | DEBIAN-CVE-2026-46599 |
| Debian:14 | golang-golang-x-image | 0.42.0-1 | DEBIAN-CVE-2026-46599 |
| Go | golang.org/x/image | 0.41.0 | GO-2026-5032 |
| Go | golang.org/x/image | 0.41.0 | GHSA-q675-qj96-32m9 |
| Ubuntu:22.04:LTS | golang-golang-x-image | no fix listed | UBUNTU-CVE-2026-46599 |
| Ubuntu:24.04:LTS | golang-golang-x-image | no fix listed | UBUNTU-CVE-2026-46599 |
| Ubuntu:25.10 | golang-golang-x-image | no fix listed | UBUNTU-CVE-2026-46599 |
| Ubuntu:26.04:LTS | golang-golang-x-image | no fix listed | UBUNTU-CVE-2026-46599 |
| Ubuntu:26.10 | golang-golang-x-image | no fix listed | UBUNTU-CVE-2026-46599 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| golang.org/x/image | golang.org/x/image/tiff | 0 – before 0.41.0 |
Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H