CVE-2026-59250

CVE-2026-59250 describes a Classic buffer overflow in the Erlang/OTP megaco flex scanner C driver. During tokenization of Local/Remote descriptors, mfs_load_property_groups extracts an attacker-controlled property name and, when no value follows, formats it into a fixed 512-byte error_msg field u...

EUVD-2026-49323

The Erlang/OTP ssl TLS 1.2 and earlier and DTLS client does not verify that the cipher suite selected by the server in ServerHello was among the suites offered by the client in ClientHello. The client-side tlshandshake:hello/5 handler validates the negotiated protocol version and the downgrade...

EEF-CVE-2026-55953 TLS 1.2 and DTLS client accepts unoffered anonymous cipher suite, bypassing server authentication

Summary The Erlang/OTP ssl TLS 1.2 and earlier and DTLS client does not verify that the cipher suite selected by the server in ServerHello was among the suites offered by the client in ClientHello. The client-side tls\handshake:hello/5 handler validates the negotiated protocol version and the...

CVE-2026-55953 TLS 1.2 and DTLS client accepts unoffered anonymous cipher suite, bypassing server authentication

The Erlang/OTP ssl TLS 1.2 and earlier and DTLS client does not verify that the cipher suite selected by the server in ServerHello was among the suites offered by the client in ClientHello. The client-side tlshandshake:hello/5 handler validates the negotiated protocol version and the downgrade...

CVE-2026-55953

The Erlang/OTP ssl TLS 1.2 and earlier and DTLS client does not verify that the cipher suite selected by the server in ServerHello was among the suites offered by the client in ClientHello. The client-side tlshandshake:hello/5 handler validates the negotiated protocol version and the downgrade...

CVE-2026-55953 TLS 1.2 and DTLS client accepts unoffered anonymous cipher suite, bypassing server authentication

The Erlang/OTP ssl TLS 1.2 and earlier and DTLS client does not verify that the cipher suite selected by the server in ServerHello was among the suites offered by the client in ClientHello. The client-side tlshandshake:hello/5 handler validates the negotiated protocol version and the downgrade...

CVE-2026-55953 TLS 1.2 and DTLS client accepts unoffered anonymous cipher suite, bypassing server authentication

The Erlang/OTP ssl TLS 1.2 and earlier and DTLS client does not verify that the cipher suite selected by the server in ServerHello was among the suites offered by the client in ClientHello. The client-side tlshandshake:hello/5 handler validates the negotiated protocol version and the downgrade...

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...

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...

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...

EUVD-2026-49321

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 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...

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...

CVE-2026-47078

Relative Path Traversal vulnerability in Erlang OTP stdlib zip module allows writing files outside the intended extraction directory via a crafted zip archive. zip:unzip/1,2 and zip:extract/1,2 validate entry paths using zip:checkdirlevel/2, which tracks directory depth as a running integer...

EUVD-2026-49317

Relative Path Traversal vulnerability in Erlang OTP stdlib zip module allows writing files outside the intended extraction directory via a crafted zip archive. zip:unzip/1,2 and zip:extract/1,2 validate entry paths using zip:checkdirlevel/2, which tracks directory depth as a running integer...

CVE-2026-47078 Relative path traversal in zip:unzip/zip:extract via check_dir_level depth-counter bypass

Relative Path Traversal vulnerability in Erlang OTP stdlib zip module allows writing files outside the intended extraction directory via a crafted zip archive. zip:unzip/1,2 and zip:extract/1,2 validate entry paths using zip:checkdirlevel/2, which tracks directory depth as a running integer...

CVE-2026-47078

Relative Path Traversal vulnerability in Erlang OTP stdlib zip module allows writing files outside the intended extraction directory via a crafted zip archive. zip:unzip/1,2 and zip:extract/1,2 validate entry paths using zip:checkdirlevel/2, which tracks directory depth as a running integer...

CVE-2026-47078

The CVE affects Erlang/OTP stdlib’s zip handling (lib/stdlib/src/zip.erl). zip:unzip/1,2 and zip:extract/1,2 validate entry paths with zip:check_dir_level/2, which tracks directory depth; while .. can decrement the counter and normal components increment it, a path like ../x/y may become negative...

CVE-2026-47078 Relative path traversal in zip:unzip/zip:extract via check_dir_level depth-counter bypass

Relative Path Traversal vulnerability in Erlang OTP stdlib zip module allows writing files outside the intended extraction directory via a crafted zip archive. zip:unzip/1,2 and zip:extract/1,2 validate entry paths using zip:checkdirlevel/2, which tracks directory depth as a running integer...

CVE-2026-47078 Relative path traversal in zip:unzip/zip:extract via check_dir_level depth-counter bypass

Relative Path Traversal vulnerability in Erlang OTP stdlib zip module allows writing files outside the intended extraction directory via a crafted zip archive. zip:unzip/1,2 and zip:extract/1,2 validate entry paths using zip:checkdirlevel/2, which tracks directory depth as a running integer...