CVE-2025-24026: iTop is an web based IT Service Management tool

Q: How do I fix CVE-2025-24026?

itop: upgrade to 3.2.1. Exact commands for each OS are on this page.

Q: Is CVE-2025-24026 being exploited?

CVE-2025-24026 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-2025-24026 affect?

CVE-2025-24026 affects itop. Severity is medium (CVSS 5.3). iTop is an web based IT Service Management tool. Versions prior to 3.2.1 are vulnerable to regular expression denial of service (ReDoS) that may, under some circumstances, affect iTop server. Version 3.2.1 doesn't use the affected variable

Q: How urgent is CVE-2025-24026?

Priority 25/100. No elevated risk signals yet.

Routine

MEDIUM 5.3UPGRADE

CVE-2025-24026 is a medium-severity flaw (CVSS 5.3) affecting itop. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

iTop is an web based IT Service Management tool. Versions prior to 3.2.1 are vulnerable to regular expression denial of service (ReDoS) that may, under some circumstances, affect iTop server. Version 3.2.1 doesn't use the affected variable in the regular expression. As a workaround, if iTop app_root_url is defined in the configuration file, then there is no possible way to exploit this ReDoS.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 74%)
CISA exploited list	No
Weakness	CWE-1333
Published	2025-05-14
Last modified	2026-06-17

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

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

Am I affected?

Timeline

2025-05-14 15:15 UTCPublished CVE record published
2026-06-17 08:57 UTCUpdated Record last modified

combodo itop UPGRADE

Affected: < 3.2.1

Fixed in: 3.2.1

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 3.2.1 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade itop

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-2025-24026?

itop: upgrade to 3.2.1. Exact commands for each OS are on this page.

Is CVE-2025-24026 being exploited?

CVE-2025-24026 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-2025-24026 affect?

CVE-2025-24026 affects itop. Severity is medium (CVSS 5.3). iTop is an web based IT Service Management tool. Versions prior to 3.2.1 are vulnerable to regular expression denial of service (ReDoS) that may, under some circumstances, affect iTop server. Version 3.2.1 doesn't use the affected variable

How urgent is CVE-2025-24026?

Priority 25/100. No elevated risk signals yet.

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References

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