CVE-2026-46604 Panic decoding image with out-of-bounds strip offset in x/image/tiff in golang.org/x/image
An attacker can cause a denial of service by providing a malformed TIFF image with an out-of-bounds strip offset to applications using the Go image library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-46604?
CVE-2026-46604 is a high-severity denial of service vulnerability in golang.org/x/image/tiff, published on 26 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The TIFF decoder can panic when decoding an invalid image with an out-of-bounds strip offset.
Weakness: CWE-787
Which versions are affected by CVE-2026-46604?
1 open source package ship an affected version, including golang.org/x/image. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
golang.org/x/image Go | All versions | 0.43.0 |
Linux distribution packages (3)
keybase-client openSUSE:Leap 16.0 | All versions | 6.6.3-bp160.1.1 |
keybase-client openSUSE:Tumbleweed | All versions | 6.6.3-2.1 |
kitty openSUSE:Tumbleweed | All versions | 0.47.4-2.1 |
Products include Golang Tiff.
How do I fix CVE-2026-46604?
Upgrade golang.org/x/image to 0.43.0 or later.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-46604 being exploited?
There is no known exploitation of CVE-2026-46604 in the wild and no public exploit code.
Other vulnerabilities in golang.org/x/image/tiff
Sources
Also known as CLEANSTART-2026-BV44413, CLEANSTART-2026-LA21918, DEBIAN-CVE-2026-46604, GO-2026-5066, MINI-3wqv-q7xr-pjv4, MINI-4w5j-cvwc-34g6 and 32 more.