---
title: "CVE-2026-72754: Routinator - Denial of Service"
description: "Routinator contains a denial of service caused by improper handling of CRL files with many entries or wrong encoding, letting attackers cause application hang or crash, exploit requires crafted CRL files."
url: https://panop.io/threat-heartbeat/CVE-2026-72754/
---

# CVE-2026-72754 Routinator - Denial of Service

Routinator contains a denial of service caused by improper handling of CRL files with many entries or wrong encoding, letting attackers cause application hang or crash, exploit requires crafted CRL files.

CVSS base score 7.5 /10

High

CISA KEV

Not listed

Public exploit

None known

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-72754)

## Details

Type

Denial of Service

Impact

Denial Of Service

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Published

26 October 2026

Updated

27 October 2026

Weakness

[CWE-755](https://cwe.mitre.org/data/definitions/755.html)

## Vendor fix

Update to the latest version with CRL handling fixes.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-72754](https://nvd.nist.gov/vuln/detail/CVE-2026-72754)
- [https://www.nlnetlabs.nl/downloads/routinator/CVE-2026-72754.txt](https://www.nlnetlabs.nl/downloads/routinator/CVE-2026-72754.txt)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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