# Reading specially crafted serializable objects from an untrusted source may cause an infinite loop and denial of service

Advisory record · `GHSA-vr64-r9qj-h27f`

- **Identifiers:** `GHSA-vr64-r9qj-h27f` · `CVE-2024-22871`
- **State:** Confirmed
- **Severity:** CVSS 7.5 High
- **Critical:** No
- **Weakness (CWE):** [CWE-502](https://cwe.mitre.org/data/definitions/502.html)
- **Tags:** [Insecure deserialization](https://agentprime.io/advisories/tag/deserialization.md)
- **Published:** 29 Feb 2024
- **Updated:** 10 Sept 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 29 Feb 2024, 03:33 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `org.clojure:clojure` (Maven): affected `>=1.7.0, <1.11.2 || >=1.12.0-alpha1, <1.12.0-alpha9`; fixed in `1.11.2`, `1.12.0-alpha9`

## Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

> Clojure (org.clojure:clojure) versions 1.7.0 up to 1.11.2 (excluding 1.11.2 itself) and 1.12.0-alpha1 up to 1.12.0-alpha9 (excluding that version) are affected. An attacker who can supply serialized Java objects to a program that calls ObjectInputStream.readObject() on untrusted data can craft a serialized map with an infinite Clojure seq as a key, causing the reading thread to loop forever and denying service. Upgrade to Clojure 1.11.2 or 1.12.0-alpha9. Avoid deserializing untrusted data with ObjectInputStream, as that is inherently unsafe on the JVM.

Written 2 Nov 2026.

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 7.5 High, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`, from GitHub Advisory Database

- **CISA KEV:** Not listed.
- **EPSS:** 0.015, the 75th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 14:18 UTC: First seen by agentprime
- 31 Oct 2026, 14:18 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-vr64-r9qj-h27f)

## Sources

- [GitHub Advisory Database: GHSA-vr64-r9qj-h27f](https://github.com/advisories/GHSA-vr64-r9qj-h27f)
- [OSV: GHSA-vr64-r9qj-h27f](https://osv.dev/vulnerability/GHSA-vr64-r9qj-h27f)
- <https://nvd.nist.gov/vuln/detail/CVE-2024-22871>
- <https://clojure.atlassian.net/browse/CLJ-2839>
- <https://github.com/clojure/clojure>
- <https://hackmd.io/%40fe1w0/rymmJGida>
- <https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/25FKUOYXQZGGJMFUM5HJABWMIX2TILRV>
- <https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SWWK2SO2MH4SXPO6L444MM6LHVLVFULV>
- <https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YFPGUDXMW6OXKIDGCOZFEAXO74VQIB2T>
- <https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/25FKUOYXQZGGJMFUM5HJABWMIX2TILRV>
- <https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SWWK2SO2MH4SXPO6L444MM6LHVLVFULV>
- <https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YFPGUDXMW6OXKIDGCOZFEAXO74VQIB2T>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-vr64-r9qj-h27f>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-vr64-r9qj-h27f/>. Everything for agents: <https://agentprime.io/llms.txt>.