NLnet Labs

CVE-2026-72752: Routinator runs out of memory when the JSON output is requested many times concurrently. This condition can be triggered maliciously by an attacker by opening a

CVE-2026-72752 Oct 26, 2026 Source: Vendor

Routinator runs out of memory when the JSON output is requested many times concurrently. This condition can be triggered maliciously by an attacker by opening a large number of connections to the HTTP server. Additionally Routinator runs into a stack overflow and exits when a payload item with too much metadata is discarded at once.

This only affects users that make their HTTP or RTR server available to untrusted networks.

Source of record The credited names below are quoted verbatim from the vendor's own advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-72752

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Credited as Qifan Zhang, Palo Alto Networks