CVE-2026-24038: Horilla is a free and open source Human Resource Management System (HRMS)

This month

HIGH 8.1DOWNGRADE

CVE-2026-24038 is a high-severity flaw (CVSS 8.1) affecting horilla. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Horilla is a free and open source Human Resource Management System (HRMS). In version 1.4.0, the OTP handling logic has a flawed equality check that can be bypassed. When an OTP expires, the server returns None, and if an attacker omits the otp field from their POST request, the user-supplied OTP is also None, causing the comparison user_otp == otp to pass. This allows an attacker to bypass two-factor authentication entirely without ever providin

Why this priority

High severity
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	8.1 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.5% (top 59%)
CISA exploited list	No
Weakness	CWE-287
Published	2026-01-22
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: horilla

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

Am I affected?

Timeline

2026-01-22 04:15 UTCPublished CVE record published
2026-06-17 10:22 UTCUpdated Record last modified

horilla horilla DOWNGRADE

Affected: 1.4.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.4.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.4.0 (Debian / Ubuntu)

apt-cache madison horilla sudo apt install horilla=<VERSION_BEFORE_1.4.0> sudo apt-mark hold horilla

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list horilla sudo dnf downgrade horilla-<VERSION_BEFORE_1.4.0> sudo dnf versionlock add horilla

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.

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-2026-24038?

horilla: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-24038 being exploited?

CVE-2026-24038 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-2026-24038 affect?

CVE-2026-24038 affects horilla. Severity is high (CVSS 8.1). Horilla is a free and open source Human Resource Management System (HRMS). In version 1.4.0, the OTP handling logic has a flawed equality check that can be bypassed. When an OTP expires, the server returns None, and if an attacker omits the

How urgent is CVE-2026-24038?

Priority 44/100. High severity; Public exploit reference

Related CVEs

CVE-2025-59832 CRITICAL 9.9 UPGRADE Horilla is a free and open source Human Resource Management System (HRMS)
CVE-2025-48868 HIGH 7.2 DOWNGRADE Horilla is a free and open source Human Resource Management System (HRMS)
CVE-2026-3050 LOW 3.5 UPGRADE A flaw has been found in horilla-opensource horilla up to 1.0.2
CVE-2026-3049 MEDIUM 4.3 UPGRADE A vulnerability was detected in horilla-opensource horilla up to 1.0.2
CVE-2026-24039 MEDIUM 4.3 DOWNGRADE Horilla is a free and open source Human Resource Management System (HRMS)

References

← Back to latest CVEs