# CVE-2024-22871: Reading specially crafted serializable objects from an untrusted source may cause an infinite loop and denial of service

> An attacker can cause a denial of service in Clojure applications via the clojure.core$partial$fn__5920 function.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 29 Feb 2024
- **Updated:** 4 Nov 2025
- **Also known as:** CLEANSTART-2024-QB51386, DEBIAN-CVE-2024-22871, GHSA-vr64-r9qj-h27f, MGASA-2024-0093, ROOT-APP-MAVEN-CVE-2024-22871, UBUNTU-CVE-2024-22871, openSUSE-SU-2024:13763-1

## What is CVE-2024-22871?

CVE-2024-22871 is a high-severity denial of service vulnerability in Fedoraproject Fedora, published on 29 Feb 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An issue in Clojure versions 1.20 to 1.12.0-alpha5 allows an attacker to cause a denial of service (DoS) via the clojure.core$partial$fn__5920 function.

Weakness: CWE-502 (Deserialization of Untrusted Data)

## Which versions are affected by CVE-2024-22871?

4 open source packages ship an affected version, including org.clojure:clojure. It affects 2 products.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `org.clojure:clojure` | Maven | From 1.12.0-alpha1 | 1.12.0-alpha9 |
| `org.clojure:clojure` | Maven | From 1.12.0-alpha1 | 1.12.0-alpha9 |
| `org.clojure:clojure` | Maven | From 1.7.0 | 1.11.2 |
| `org.clojure:clojure` | Maven | From 1.7.0 | 1.11.2 |
| `clojure` | openSUSE:Tumbleweed | All versions | 1.11.2.1446-1.1 |

Products: Clojure Clojure, Fedoraproject Fedora.

## How do I fix CVE-2024-22871?

Upgrade org.clojure:clojure to a fixed version for your release line: 1.12.0-alpha9 or 1.11.2.

## Is CVE-2024-22871 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-22871 exists.

## Other vulnerabilities in Fedoraproject Fedora

- [CVE-2017-20189](https://insights.sbomify.com/CVE-2017-20189/): Clojure classes can be used to craft a serialized object that runs arbitrary code on deserialization (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-22871 and fix it if it is affected.

What it is: CVE-2024-22871 is a high-severity denial of service vulnerability in Fedoraproject Fedora, published on 29 Feb 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-22871 exists.

Affected packages and fixed versions:
- org.clojure:clojure (Maven): affected from 1.12.0-alpha1; fixed in 1.12.0-alpha9
- org.clojure:clojure (Maven): affected from 1.12.0-alpha1; fixed in 1.12.0-alpha9
- org.clojure:clojure (Maven): affected from 1.7.0; fixed in 1.11.2
- org.clojure:clojure (Maven): affected from 1.7.0; fixed in 1.11.2

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-2024-22871/ (Markdown: https://insights.sbomify.com/CVE-2024-22871/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-22871
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-22871
- OSV: https://osv.dev/vulnerability/CVE-2024-22871

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-22871/
Summaries are generated and may contain mistakes; the official description above is the record.