CVE-2026-32285

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.

What this means for your business

It affects Jsonparser Project Jsonparser. It matters if your company, or a supplier that handles your data, runs it.
Code showing how to exploit it has been published, but real attacks have not been confirmed.
An attacker can use it remotely, over a network, without a login, and without anyone at your company clicking anything.
FIRST's prediction model gives it a 0.8% chance of attack attempts being seen in the next 30 days, ranking above 52% of all known flaws.

What to do

1Check whether your company or your suppliers run Jsonparser Project Jsonparser, and which version. The affected versions are listed further down this page.
2If you do, follow the vendor's guidance. No patch reference has been published yet.

Not sure if your company is exposed?

Fastnexa’s certified penetration testers can check whether attackers could use this flaw, or others like it, against your websites, apps and network. The full test is free for our first 10 founding clients until 31 December 2026.

Check if you’re exposed Book a call

Scoring

CVSS: 7.5 (v3.1)
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-129
Assigned by: security@golang.org

Dates

Published: 2026-03-26
Last modified: 2026-09-09
Sources: NVD

Affected products

Jsonparser Project Jsonparser- 1.1.2

As listed in the NVD configuration data. Not a statement about your estate.