CVE-2026-32285 Denial of service in github.com/buger/jsonparser
A flaw in the jsonparser library allows attackers to cause a denial of service via runtime panic using malformed JSON input.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-32285?
CVE-2026-32285 is a high-severity denial of service vulnerability in github.com/buger/jsonparser, published on 26 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Delete function fails to properly validate offsets when processing malformed JSON input. This can lead to a negative slice index and a runtime panic, allowing a denial of service attack.
Which versions are affected by CVE-2026-32285?
3 open source packages ship an affected version, including github.com/buger/jsonparser. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/buger/jsonparser Go | All versions | 1.1.2 |
github.com/buger/jsonparser Go | All versions | 1.1.2 |
github.com/buger/jsonparser Go | All versions | 1.1.2 |
Linux distribution packages (1)
syft Red Hat:hummingbird:1 | All versions | 0:1.42.4-0.1.hum1 |
Products include Jsonparser Project Jsonparser.
How do I fix CVE-2026-32285?
Upgrade github.com/buger/jsonparser to 1.1.2 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-2026-32285 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-32285 exists.
Sources
Also known as BELL-CVE-2026-32285, CLEANSTART-2026-BH99085, CLEANSTART-2026-KS29431, DEBIAN-CVE-2026-32285, GHSA-6g7g-w4f8-9c9x, GO-2026-4514 and 98 more.