In Tor Arti before 1.2.3, STUB circuits incorrectly have a length of 2 (with lite vanguards), aka TROVE-2024-003.
gitlab.torproject.org/tpo/core/arti
gitlab.torproject.org/tpo/core/arti/-/blob/main/CHANGELOG.md#arti-123-15-may-2024
gitlab.torproject.org/tpo/core/arti/-/commit/da95138c14f762c706e46e89c6adfa46fcd5252c
gitlab.torproject.org/tpo/core/arti/-/issues/1409
gitlab.torproject.org/tpo/core/arti/-/merge_requests/2145
gitlab.torproject.org/tpo/core/arti/-/merge_requests/2154
gitlab.torproject.org/tpo/core/arti/-/merge_requests/2156
gitlab.torproject.org/tpo/core/team/-/wikis/NetworkTeam/TROVE
nvd.nist.gov/vuln/detail/CVE-2024-35312
rustsec.org/advisories/RUSTSEC-2024-0339.html