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cpan

YAML-Syck

cpan

Fast, lightweight YAML loader and dumper

View on github.com · View on metacpan.org

Security Advisories for YAML-Syck in cpan

about 1 month ago

YAML::Syck versions before 1.47 for Perl allow a use-after-free and double-free via an anchor node freed while still on the parser value stack. In the bundled libsyck, when an anchor name is redefined or removed, syck_hdlr_add_anchor and syck_hdlr_rem... CPANSA-YAML-Syck-2026-13713

cpan YAML-Syck
about 1 month ago

YAML::Syck versions before 1.47 for Perl allow an out-of-bounds read via a signed-char lookup-table index in syck_base64dec. The base64 decoder in the bundled libsyck indexes the 256-entry static table b64_xtable with a signed char, so any !!binary by... CPANSA-YAML-Syck-2026-57075

cpan YAML-Syck
about 1 month ago

YAML::Syck versions before 1.47 for Perl allow a heap use-after-free via an anchor name reused as an anchors-table key in syck_hdlr_add_anchor. In the bundled libsyck an anchor name allocated by syck_strndup is stored both as node->anchor, freed when ... CPANSA-YAML-Syck-2026-57076

cpan YAML-Syck
about 1 month ago

YAML::Syck versions before 1.47 for Perl allow an out-of-bounds read via an unbounded newline scan in newline_len. In the bundled libsyck newline_len and is_newline dereference the scan pointer, and the following byte for a "\r\n" pair, with no NUL-te... CPANSA-YAML-Syck-2026-57077

cpan YAML-Syck
4 months ago

YAML::Syck versions before 1.38 for Perl has an out-of-bounds read. The base60 (sexagesimal) parsing code in perl_syck.h has a buffer underflow bug in both int#base60 and float#base60 handlers. When processing the leftmost segment of a colon-separate... CPANSA-YAML-Syck-2026-5089

cpan YAML-Syck
5 months ago

YAML::Syck versions through 1.36 for Perl has several potential security vulnerabilities including a high-severity heap buffer overflow in the YAML emitter. The heap overflow occurs when class names exceed the initial 512-byte allocation. The base64 ... CPANSA-YAML-Syck-2026-4177

cpan YAML-Syck
11 months ago

YAML::Syck versions before 1.36 for Perl has missing null-terminators which causes out-of-bounds read and potential information disclosure Missing null terminators in token.c leads to but-of-bounds read which allows adjacent variable to be read The i... CPANSA-YAML-Syck-2025-11683

cpan YAML-Syck

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