CVE-2024-22871: An issue in Clojure versions 1.20 to 1.12.0-alpha5 allows an attacker to cause a denial of service (DoS) via t

This week

HIGH 7.5REMOTEUPGRADEMITIGATE

CVE-2024-22871 is a high-severity flaw (CVSS 7.5) affecting clojure, fedora. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.5% (top 25%)
CISA exploited list	No
Weakness	CWE-502
Published	2024-02-29
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: clojure · fedoraproject

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-02-29 02:15 UTCPublished CVE record published
2026-06-17 07:11 UTCUpdated Record last modified

clojure clojure UPGRADE

Affected: >= 1.2.0 and < 1.11.2 · 1.12.0 alpha1 · 1.12.0 alpha2 · 1.12.0 alpha3 · 1.12.0 alpha4 · 1.12.0 alpha5 · 1.12.0 alpha6 · 1.12.0 alpha7

Fixed in: 1.11.2

Safe to downgrade to: a release before 1.2.0

1. Check installed version

apt-cache policy clojure || rpm -q clojure || clojure --version

2. UPGRADE to 1.11.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade clojure

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade clojure

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 1.2.0 (Debian / Ubuntu)

apt-cache madison clojure sudo apt install clojure=<VERSION_BEFORE_1.2.0> sudo apt-mark hold clojure

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list clojure sudo dnf downgrade clojure-<VERSION_BEFORE_1.2.0> sudo dnf versionlock add clojure

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

fedoraproject fedora MITIGATE

Affected: 38 · 39 · 40

Fixed in: no fixed release known

Safe to downgrade to: a release before 38

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-22871?

clojure: upgrade to 1.11.2; fedora: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2024-22871 being exploited?

CVE-2024-22871 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-22871 affect?

CVE-2024-22871 affects clojure, fedora. Severity is high (CVSS 7.5). 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.

How urgent is CVE-2024-22871?

Priority 55/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2017-20189 CRITICAL 9.8 UPGRADE In Clojure before 1.9.0, classes can be used to construct a serialized object that executes arbitrary code upo

References

← Back to latest CVEs