Off-by-one error in certain versions of xfstt allows remote attackers to read potentially sensitive memory via a malformed client request in the connection handshake, which leaks the memory in the server's response.
Tor before 0.4.9.7 has an out-of-bounds read by one byte via a malformed BEGIN cell, aka TROVE-2026-007.
GNU Libtasn1 before 4.19.0 has an ETYPE_OK off-by-one array size check that affects asn1_encode_simple_der.