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UTF32Reader corrupts or drops the low surrogate when a supplementary character splits across a read() boundary

Status: Open.

#1713 In FasterXML/jackson-core;

· youdie006 opened on Sep 15, 2026

File/Path generator construction can leak or bypass decorated output cleanup

Status: Open.

#1711 In FasterXML/jackson-core;

· Dongnyoung opened on Sep 15, 2026

Consider validating raw unpaired UTF-16 surrogates in ReaderBasedJsonParser

Status: Open.

#1705 In FasterXML/jackson-core;

· elang2 opened on Sep 12, 2026

JSON \uXXXX escape accepts lone surrogates in string values (follow-on to #1494 for #363)

Status: Open.

#1683 In FasterXML/jackson-core;

· elang2 opened on Sep 5, 2026

Avoid per-character escape-table load in _writeStringSegment ASCII loop

Status: Open.

#1680 In FasterXML/jackson-core;

· franz1981 opened on Sep 1, 2026

No-allocation DoubleToDecimal / FloatToDecimal

Status: Open.

#1652 In FasterXML/jackson-core;

· westinrm opened on Aug 11, 2026

Non-root number separator validation not applied to non-blocking (async) parser (follow-up to #1557)

Status: Open.

#1640 In FasterXML/jackson-core;

· seonwooj0810 opened on Jul 24, 2026

Add support for char-based NonBlockingInputFeeder

Status: Open.

#1604 In FasterXML/jackson-core;

· robtimus opened on Apr 29, 2026

Parsing for non-root number values fails lazily

3.xIssues to be only tackled for Jackson 3.x, not 2.xIssues to be only tackled for Jackson 3.x, not 2.x

Status: Open.

#1557 In FasterXML/jackson-core;

· cowtowncoder opened on Feb 25, 2026

Implement novel, branch-free JSON escaping algorithm

Status: Open.

#1384 In FasterXML/jackson-core;

· franz1981 opened on Jan 10, 2025

JDK compatibility issues with jackson-core 2.14 and later due to Multi-Release (MR) jars

will-not-fixNo plans to address the issueNo plans to address the issue

Status: Open.

#1210 In FasterXML/jackson-core;

· techwhizbang opened on Feb 6, 2024

Allow suppresion of source information in exception messages

Status: Open.

#1158 In FasterXML/jackson-core;

· jamesagnew opened on Dec 6, 2023