CVE-2026-55737

Signed to Unsigned Conversion Error and Out-of-bounds Write vulnerability in Erlang OTP erts allows an attacker who can supply a crafted Erlang external term format ETF binary to binarytoterm/1 to corrupt the BEAM heap pointer and crash the virtual machine. When decoding a LARGETUPLEEXT term, the...

CVE-2026-55737

CVE-2026-55737 affects Erlang OTPs/erts (versions referenced as 13.0–15.2.7.11, 16.4.0.4, 17.0.4 for OTP 25.0–29.0) where LARGE_TUPLE_EXT decoding uses conflicting arity handling. The validation pass reads the 32-bit arity as unsigned (get_uint32()), while the decode pass reads it as signed (get_...

CVE-2026-55737 Heap pointer corruption via signed/unsigned mismatch in LARGE_TUPLE_EXT decoding in erts external term format decoder

Signed to Unsigned Conversion Error and Out-of-bounds Write vulnerability in Erlang OTP erts allows an attacker who can supply a crafted Erlang external term format ETF binary to binarytoterm/1 to corrupt the BEAM heap pointer and crash the virtual machine. When decoding a LARGETUPLEEXT term, the...

EEF-CVE-2026-55737 Heap pointer corruption via signed/unsigned mismatch in LARGE_TUPLE_EXT decoding in erts external term format decoder

Summary Signed to Unsigned Conversion Error and Out-of-bounds Write vulnerability in Erlang OTP erts allows an attacker who can supply a crafted Erlang external term format ETF binary to binary\to\term/1 to corrupt the BEAM heap pointer and crash the virtual machine. When decoding a LARGE\TUPLE\E...

PT-2026-64987

Signed to Unsigned Conversion Error and Out-of-bounds Write vulnerability in Erlang OTP erts allows an attacker who can supply a crafted Erlang external term format ETF binary to binary to term/1 to corrupt the BEAM heap pointer and crash the virtual machine. When decoding a LARGE TUPLE EXT term,...