# CVE-2026-110974: Uncontrolled Recursion on Nested JSON Allows Denial of Service in android-json


- **Severity:** Medium 6.3 (`CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Fix available:** No
- **Published:** 22 Oct 2026
- **Updated:** 22 Oct 2026
- **Also known as:** GHSA-mpj5-6q3h-p6x6

## What is CVE-2026-110974?

CVE-2026-110974 is a medium-severity vulnerability in vaadin android-json, published on 22 Oct 2026. 

### Official description

The org.json parser in com.vaadin.external.google:android-json recurses once per nesting level with no depth limit: JSONTokener.nextValue() calls readArray() and readObject(), which call nextValue() again. A deeply nested JSON document, around 20 KB of nested arrays with the default thread stack, makes the JSONArray and JSONObject constructors throw a raw java.lang.StackOverflowError instead of a JSONException. Any application that parses untrusted JSON with this library can be made to fail the thread doing the parsing. The artifact is a 2013 repackage of third-party org.json classes, published once and never maintained, and no fixed version will be released.

Users of the affected version should apply the following mitigation.

Product version
com.vaadin.external.google:android-json 0.0.20131108.vaadin1

Mitigation
No fixed version will be released. Replace the artifact with an org.json implementation that limits the nesting depth, such as org.json:json 20231013 or later.

Artifacts
Maven coordinates / Vulnerable versions / Fixed version
com.vaadin.external.google:android-json / 0.0.20131108.vaadin1 / none

Weakness: CWE-674 (Uncontrolled Recursion)

## Which versions are affected by CVE-2026-110974?


## How do I fix CVE-2026-110974?

No fix has been published for CVE-2026-110974 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-110974 being exploited?

There is no known exploitation of CVE-2026-110974 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-110974 and fix it if it is affected.

What it is: CVE-2026-110974 is a medium-severity vulnerability in vaadin android-json, published on 22 Oct 2026. 
Exploitation: There is no known exploitation of CVE-2026-110974 in the wild and no public exploit code.

Affected product: vaadin android-json. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-110974/ (Markdown: https://insights.sbomify.com/CVE-2026-110974/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-110974
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-110974
- OSV: https://osv.dev/vulnerability/CVE-2026-110974

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-110974/
Summaries are generated and may contain mistakes; the official description above is the record.