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Decoder Mishandles json.UnmarshalerContext When json.Unmarshal Called, json.Unmarshaler When json.UnmarshalContext Called

Status: Open.

#583 In goccy/go-json;

· bn-bmagee opened on Jun 9, 2026

Marshal: nil pointer dereference on an omitempty pointer-to-struct field next to an embedded struct, when that struct is itself embedded (regression since v0.10.1)

Status: Open.

#581 In goccy/go-json;

· gatisr opened on Jun 3, 2026

checkptr crash in decodeKeyByBitmapUint8

Status: Open.

#577 In goccy/go-json;

· chippyash opened on May 11, 2026

[BUG] Embedded struct with omitempty is incorrectly omitted entirely

Status: Open.

#576 In goccy/go-json;

· gojuukaze opened on Apr 20, 2026

Unmarshal can trigger fatal checkptr runtime error on malformed escaped string input

Status: Open.

#575 In goccy/go-json;

· deliri opened on Apr 17, 2026

Corrupted JSON string when decoding (demo code)

Status: Open.

#574 In goccy/go-json;

· wxiaoguang opened on Apr 14, 2026

Benchmark comparison with velox-io/json

Status: Open.

#573 In goccy/go-json;

· kafka1991 opened on Mar 21, 2026

SIGSEGV: segmentation violation in appendNormalizedHTMLString when marshaling struct after unmarshaling from stream

Status: Open.

#572 In goccy/go-json;

· Lhd-creator opened on Mar 16, 2026

panic: runtime error: index out of range [576456381331560665] with length 39448 [recovered, repanicked]

Status: Open.

#571 In goccy/go-json;

· ddevsr opened on Mar 13, 2026

include ugorji/codec to benchmark / comparison

Status: Open.

#569 In goccy/go-json;

· Arnaudv6 opened on Feb 13, 2026

Bug: Case-insensitive key matching fails for structs with 17+ fields

Status: Open.

#568 In goccy/go-json;

· arkus7 opened on Feb 12, 2026

DATA RACE in encode/decoder compilers

Status: Open.

#566 In goccy/go-json;

· TelpeNight opened on Jan 7, 2026