# CVE-2023-39219: Admin Console Denial of Service via Java class enumeration

> Attackers can cause the PingFederate Admin Console to become unresponsive by sending crafted Java class loading enumeration requests.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 25 Oct 2023
- **Updated:** 12 Jun 2025
- **Also known as:** GHSA-962v-m5vf-4cv6

## What is CVE-2023-39219?

CVE-2023-39219 is a high-severity denial of service vulnerability in PingFederate, published on 25 Oct 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

PingFederate Administrative Console dependency contains a weakness where console becomes unresponsive with crafted Java class loading enumeration requests

Weakness: CWE-400 (Uncontrolled Resource Consumption)

## Which versions are affected by CVE-2023-39219?

It affects 1 product.


Products: Pingidentity Pingfederate.

## How do I fix CVE-2023-39219?

No fix has been published for CVE-2023-39219 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-39219 being exploited?

There is no known exploitation of CVE-2023-39219 in the wild and no public exploit code.

## Other vulnerabilities in PingFederate

- [CVE-2021-40329](https://insights.sbomify.com/CVE-2021-40329/): The Authentication API in Ping Identity PingFederate before 10.3 mishandles certain aspects of external password management. (critical 9.8)
- [CVE-2023-40545](https://insights.sbomify.com/CVE-2023-40545/): PingFederate OAuth client_secret_jwt Authentication Bypass (high 8.8)
- [CVE-2023-37283](https://insights.sbomify.com/CVE-2023-37283/): Authentication Bypass via HTML Form & Identifier First Adapter (high 8.1)
- [CVE-2022-40722](https://insights.sbomify.com/CVE-2022-40722/): Misconfiguration of RSA padding for offline MFA in the PingID Adapter for PingFederate. (high 7.7)
- [CVE-2021-41770](https://insights.sbomify.com/CVE-2021-41770/): XML external entity in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-39219 and fix it if it is affected.

What it is: CVE-2023-39219 is a high-severity denial of service vulnerability in PingFederate, published on 25 Oct 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2023-39219 in the wild and no public exploit code.

Affected product: PingFederate. 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-2023-39219/ (Markdown: https://insights.sbomify.com/CVE-2023-39219/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-39219
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-39219
- OSV: https://osv.dev/vulnerability/CVE-2023-39219

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-39219/
Summaries are generated and may contain mistakes; the official description above is the record.