Routinator may exit on malformed ranges

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-72758
StatePUBLISHED
AssignerNLnet Labs
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-26 18:18:42 UTC
Updated2026-10-26 18:35:08 UTC
DescriptionWhen 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.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from [email protected]

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

Problem Types: CWE-755 | CWE-755 CWE-755 Improper Handling of Exceptional Conditions

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1CNACVSS7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA NLnet Labs Routinator unaffected 0.15.3 * semver Not specified

References

ReferenceSourceLinkTags
www.nlnetlabs.nl/downloads/routinator/CVE-2026-72756.txt [email protected] www.nlnetlabs.nl
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Qifan Zhang, Palo Alto Networks (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-05-29T00:00:00.000ZIssue reported
CNA2026-10-26T00:00:00.000ZFixes released

Solutions

CNA: This issue is fixed in 0.15.3 and all later versions.

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