CVE-2026-72758
Deferred Deferred - Pending Action

Memory Exhaustion in Routinator AS Range Parsing

Publication date: 2026-10-26

Last updated on: 2026-10-26

Assigner: NLnet Labs

Description
When parsing an AS range in Routinator, if the maximum value of the range is smaller than the minimum value of the range, Routinator will never reach the maximum value and run out of memory.

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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-2026-72758
EUVD
EUVD-2026-110031

Affected Vendors & Products

Currently, no data is known.

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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 occurs in Routinator when parsing an AS range. If the maximum value of the range is smaller than the minimum value, Routinator will never reach the maximum and instead run out of memory due to an infinite loop or excessive resource consumption.

Impact Analysis

This vulnerability can cause a denial of service by crashing Routinator due to memory exhaustion. It may disrupt network operations relying on Routinator for AS range validation, leading to service unavailability.

Mitigation Strategies

Update Routinator to the latest version to fix the AS range parsing issue. Monitor memory usage during parsing to detect abnormal consumption. Ensure input validation for AS range values to prevent invalid ranges.

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