Add nesting depth limit to msgpack and CSEXP parsers#377
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vstakhov merged 1 commit intovstakhov:masterfrom Apr 8, 2026
Merged
Add nesting depth limit to msgpack and CSEXP parsers#377vstakhov merged 1 commit intovstakhov:masterfrom
vstakhov merged 1 commit intovstakhov:masterfrom
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The UCL text parser enforces a nesting depth limit, but the msgpack and CSEXP parsers had none. Deeply nested input could allocate heap memory without bound. Add a UCL_MAX_NESTING limit (1024) to both parsers, matching the pattern used by the UCL text parser. Also count depth in the CSEXP parser's read_obrace/read_ebrace states.
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Fix #376: The UCL text parser enforces a nesting depth limit, but the msgpack and CSEXP parsers had none. Deeply nested input could allocate heap memory without bound.
Add a UCL_MAX_NESTING limit (1024) to both parsers, matching the pattern used by the UCL text parser. Also count depth in the CSEXP parser's read_obrace/read_ebrace states.