CVE-2026-72754
Deferred Deferred - Pending Action

Routinator Memory Exhaustion via Malformed CRL Handling

Publication date: 2026-10-26

Last updated on: 2026-10-26

Assigner: NLnet Labs

Description
When Routinator encounters a CRL with many entries, it may hang or run out of memory. If Routinator encounters a CRL file with the wrong encoding, it may exit.

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Meta Information

Published
2026-10-26
Last Modified
2026-10-26
Generated
2026-10-26
AI Q&A
2026-10-26
EPSS Evaluated
N/A
NVD
CVE-2026-72754
EUVD
EUVD-2026-110027

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
nlnetlabs routinator to 0.15.2 (inc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-755 The product does not handle or incorrectly handles an exceptional condition.

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Executive Summary

This vulnerability affects Routinator, a tool for validating RPKI data. When Routinator processes a Certificate Revocation List (CRL) with an excessive number of entries, it may freeze or consume too much memory. Additionally, if the CRL file has incorrect encoding, Routinator may crash entirely.

Detection Guidance

Check Routinator version with 'routinator --version'. If it is 0.15.2 or lower, the system is vulnerable. Monitor for hangs or crashes when processing CRL files.

Impact Analysis

If you use Routinator, this flaw could cause service disruptions by making the tool unresponsive or crashing it. This may lead to delays in RPKI validation, affecting the security and availability of your routing infrastructure.

Mitigation Strategies

Upgrade Routinator to version 0.15.3 or later immediately. Remove or restrict access to malformed CRL files to prevent triggering the issue.

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