CVE-2026-72753
Deferred Deferred - Pending Action

RRDNS Gap Handling Memory Exhaustion in Routinator

Publication date: 2026-10-26

Last updated on: 2026-10-26

Assigner: NLnet Labs

Description
When Routinator encounters an RRDP notification file with gaps in the delta entries, it is still accepted and parsed, potentially leading to missing data. If it encounters too many delta entries it may 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-2026-72753
EUVD
EUVD-2026-110026

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
nlnetlabs routinator to 0.15.2 (inc)
nlnetlabs routinator From 0.15.3 (inc)

Helpful Resources

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

CVE-2026-72753 affects Routinator versions up to 0.15.2 by mishandling delta updates in RRDP notification files. Gaps in delta entries may cause missing data, and too many entries can exhaust memory.

Detection Guidance

Check Routinator version with 'routinator --version'. If it is 0.15.2 or earlier, the system is vulnerable. Monitor memory usage during RRDP updates and inspect RRDP notification files for gaps in delta entries.

Impact Analysis

This vulnerability could lead to missing RPKI data due to gaps in updates or system crashes from memory exhaustion, disrupting routing security and validation processes.

Mitigation Strategies

Upgrade Routinator to version 0.15.3 or later immediately. If upgrading is not possible, restrict network access to RRDP services and monitor for unusual memory consumption during updates.

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