CVE-2026-72757 Details
Description
Routinator runs out of open connections on the HTTP server when many connections are opened but never closed, leaving the HTTP server unavailable. This condition can be triggered maliciously by an attacker by opening a large number of connections to the HTTP server. This only affects users that make their HTTP or RTR server available to untrusted networks.
A denial-of-service vulnerability has been identified in NLnet Labs Routinator versions prior to 0.15.3. The issue arises when the HTTP server runs out of open connections due to a large number of connections being opened but never closed. This situation leaves the HTTP server unavailable. The vulnerability can be exploited maliciously by opening numerous connections to the server. It only affects users who make their HTTP or RTR server available to untrusted networks.
Users are advised to update Routinator to version 0.15.3 or later.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 26, 2026CISA-ADP
Assessed Oct 26, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.nlnetlabs.nl/downloads/routinator/CVE-2026-72756.txt | [email protected] | AdvisoryBroken LinkVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-755 | Improper Handling of Exceptional Conditions | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| NLnet Labs Routinator | <= 0.15.2 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 26, 2026 | New CVE Received | [email protected] |
| Oct 26, 2026 | CVE Modified | CISA-ADP |