CVE-2026-66733: Unbounded Packet Gap Allocation

A packet sequence gap calculation is used as a loop bound for queue or vector allocation without verifying an upper limit. An attacker can supply a large packet ID to trigger excessive memory allocation and cause a denial of service (DoS).

Provally CuratedPublic repositoryMediumHigh confidenceVerifiedApache-2.0C++
greprules fetch cve-2026-66733-unbounded-packet-gap-allocation --engine opengrep

Description

A packet sequence gap calculation is used as a loop bound for queue or vector allocation without verifying an upper limit. An attacker can supply a large packet ID to trigger excessive memory allocation and cause a denial of service (DoS).