NLnet Labs

CVE-2026-72757: Routinator runs out of open connections on the HTTP server when many connections are opened but never closed, leaving the HTTP server unavailable. This conditio

CVE-2026-72757 Oct 26, 2026 Source: Vendor

Routinator runs out of open connections on the HTTP server when many connections are opened but never closed, leaving the HTTP server unavailable. This condition can be triggered maliciously by an attacker by opening a large number of connections to the HTTP server.

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-2026-72757

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Credited

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CVE-2026-72757 BR2026-0000-033121 unclaimed

Credited as Qifan Zhang, Palo Alto Networks