CVE-2024-8789: Lunary-ai/lunary version git 105a3f6 is vulnerable to a Regular Expression Denial of Service (ReDoS) attack

Q: How do I fix CVE-2024-8789?

lunary: upgrade to 1.4.23. Exact commands for each OS are on this page.

Q: Is CVE-2024-8789 being exploited?

CVE-2024-8789 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2024-8789 affect?

CVE-2024-8789 affects lunary. Severity is high (CVSS 7.5). Lunary-ai/lunary version git 105a3f6 is vulnerable to a Regular Expression Denial of Service (ReDoS) attack. The application allows users to upload their own regular expressions, which are then executed on the server side. Certain regular e

Q: How urgent is CVE-2024-8789?

Priority 51/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

HIGH 7.5REMOTEUPGRADE

CVE-2024-8789 is a high-severity flaw (CVSS 7.5) affecting lunary. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Lunary-ai/lunary version git 105a3f6 is vulnerable to a Regular Expression Denial of Service (ReDoS) attack. The application allows users to upload their own regular expressions, which are then executed on the server side. Certain regular expressions can have exponential runtime complexity relative to the input size, leading to potential denial of service. An attacker can exploit this by submitting a specially crafted regular expression, causing

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	0.8% (top 43%)
CISA exploited list	No
Weakness	CWE-1333
Published	2025-03-20
Last modified	2026-06-17

Publisher (CNA): huntr.dev · Vendor: lunary

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

Am I affected?

Timeline

2025-03-20 10:15 UTCPublished CVE record published
2026-06-17 08:23 UTCUpdated Record last modified

lunary lunary UPGRADE

Affected: < 1.4.23

Fixed in: 1.4.23

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 1.4.23 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade lunary

Note

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

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-2024-8789?

lunary: upgrade to 1.4.23. Exact commands for each OS are on this page.

Is CVE-2024-8789 being exploited?

CVE-2024-8789 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-2024-8789 affect?

CVE-2024-8789 affects lunary. Severity is high (CVSS 7.5). Lunary-ai/lunary version git 105a3f6 is vulnerable to a Regular Expression Denial of Service (ReDoS) attack. The application allows users to upload their own regular expressions, which are then executed on the server side. Certain regular e

How urgent is CVE-2024-8789?

Priority 51/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

Git vulnerabilities

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References

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