PYSEC-2026-684 Memory leak in Nanopb

Impact Decoding specifically formed message can leak memory if dynamic allocation is enabled and an oneof field contains a static submessage that contains a dynamic field, and the message being decoded contains the submessage multiple times. This is rare in normal messages, but it is a concern wh...

CVE-2026-54269 protobufjs: Schema-derived names can shadow runtime-significant properties

protobufjs compiles protobuf definitions into JavaScript JS functions. Prior to 8.6.0 and 7.6.3, protobufjs accepted certain schema-derived names that could collide with properties used by protobufjs runtime helpers. The known affected names are fields named hasOwnProperty, field or oneof names...

CVE-2026-54269

protobufjs compiles protobuf definitions into JavaScript JS functions. Prior to 8.6.0 and 7.6.3, protobufjs accepted certain schema-derived names that could collide with properties used by protobufjs runtime helpers. The known affected names are fields named hasOwnProperty, field or oneof names...

nanopb vulnerable to invalid free() call with oneofs and PB_ENABLE_MALLOC

Impact Decoding a specifically formed message can cause invalid free or realloc calls if the message type contains an oneof field, and the oneof directly contains both a pointer field and a non-pointer field. If the message data first contains the non-pointer field and then the pointer field, the...

GHSA-7MV5-5MXH-QG88 nanopb vulnerable to invalid free() call with oneofs and PB_ENABLE_MALLOC

Impact Decoding a specifically formed message can cause invalid free or realloc calls if the message type contains an oneof field, and the oneof directly contains both a pointer field and a non-pointer field. If the message data first contains the non-pointer field and then the pointer field, the...

SUSE CVE-2020-26243

Nanopb is a small code-size Protocol Buffers implementation. In Nanopb before versions 0.4.4 and 0.3.9.7, decoding specifically formed message can leak memory if dynamic allocation is enabled and an oneof field contains a static submessage that contains a dynamic field, and the message being...

SUSE CVE-2021-21401

Nanopb is a small code-size Protocol Buffers implementation in ansi C. In Nanopb before versions 0.3.9.8 and 0.4.5, decoding a specifically formed message can cause invalid free or realloc calls if the message type contains an oneof field, and the oneof directly contains both a pointer field and ...

DEBIAN-CVE-2021-21401

Nanopb is a small code-size Protocol Buffers implementation in ansi C. In Nanopb before versions 0.3.9.8 and 0.4.5, decoding a specifically formed message can cause invalid free or realloc calls if the message type contains an oneof field, and the oneof directly contains both a pointer field and ...

UBUNTU-CVE-2021-21401

Nanopb is a small code-size Protocol Buffers implementation in ansi C. In Nanopb before versions 0.3.9.8 and 0.4.5, decoding a specifically formed message can cause invalid free or realloc calls if the message type contains an oneof field, and the oneof directly contains both a pointer field and ...

Null pointer dereference

Nanopb is a small code-size Protocol Buffers implementation in ansi C. In Nanopb before versions 0.3.9.8 and 0.4.5, decoding a specifically formed message can cause invalid free or realloc calls if the message type contains an oneof field, and the oneof directly contains both a pointer field and ...

PYSEC-2021-432

Nanopb is a small code-size Protocol Buffers implementation in ansi C. In Nanopb before versions 0.3.9.8 and 0.4.5, decoding a specifically formed message can cause invalid free or realloc calls if the message type contains an oneof field, and the oneof directly contains both a pointer field and ...

CVE-2021-21401 Invalid free() call in Nanopb

Nanopb is a small code-size Protocol Buffers implementation in ansi C. In Nanopb before versions 0.3.9.8 and 0.4.5, decoding a specifically formed message can cause invalid free or realloc calls if the message type contains an oneof field, and the oneof directly contains both a pointer field and ...

CVE-2021-21401

Nanopb is a small code-size Protocol Buffers implementation in ansi C. In Nanopb before versions 0.3.9.8 and 0.4.5, decoding a specifically formed message can cause invalid free or realloc calls if the message type contains an oneof field, and the oneof directly contains both a pointer field and ...

PT-2021-14478 · Nanopb +2 · Nanopb +2

Name of the Vulnerable Software and Affected Versions: Nanopb versions prior to 0.3.9.8 and 0.4.5 Description: Decoding a specifically formed message can cause invalid free or realloc calls if the message type contains an oneof field, and the oneof directly contains both a pointer field and a...

Denial Of Service (DoS)

nanopb is vulnerable to denial of service DoS. The vulnerability exists when decoding specifically formed message can leak memory if dynamic allocation is enabled and an oneof field contains a static submessage that contains a dynamic field, and the message being decoded contains the submessage...

DEBIAN-CVE-2020-26243

Nanopb is a small code-size Protocol Buffers implementation. In Nanopb before versions 0.4.4 and 0.3.9.7, decoding specifically formed message can leak memory if dynamic allocation is enabled and an oneof field contains a static submessage that contains a dynamic field, and the message being...

UBUNTU-CVE-2020-26243

Nanopb is a small code-size Protocol Buffers implementation. In Nanopb before versions 0.4.4 and 0.3.9.7, decoding specifically formed message can leak memory if dynamic allocation is enabled and an oneof field contains a static submessage that contains a dynamic field, and the message being...

GHSA-85RR-4RH9-HHWH Memory leak in Nanopb

Impact Decoding specifically formed message can leak memory if dynamic allocation is enabled and an oneof field contains a static submessage that contains a dynamic field, and the message being decoded contains the submessage multiple times. This is rare in normal messages, but it is a concern wh...

PT-2020-16371

Name of the Vulnerable Software and Affected Versions Nanopb versions prior to 0.3.9.7 Nanopb versions prior to 0.4.4 Description Decoding specifically formed messages can leak memory if dynamic allocation is enabled and an oneof field contains a static submessage that contains a dynamic field, a...