CVE-2026-86513 Denial of service in jackson-coreutils
Remote attackers can cause resource exhaustion in the jackson-coreutils JSON Pointer parser, leading to denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-86513?
CVE-2026-86513 is a medium-severity denial of service vulnerability in java-json-tools jackson-coreutils, published on 8 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A security flaw has been discovered in java-json-tools jackson-coreutils 2.0. This vulnerability affects the function TreePointer.tokensFromInput of the file src/main/java/com/github/fge/jackson/jsonpointer/TreePointer.java of the component JSON Pointer parser. The manipulation results in allocation of resources. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
Which versions are affected by CVE-2026-86513?
How do I fix CVE-2026-86513?
No fix has been published for CVE-2026-86513 yet. Limit exposure of the affected software until one is available.
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-2026-86513 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-86513 exists.
Sources
Also known as GHSA-6924-jpg3-mjfw.