Important: Red Hat Security Advisory: perl-YAML-Syck security update

An update for perl-YAML-Syck is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability...

Important: perl-YAML-Syck security update

This module provides a Perl interface to the libsyck data serialization library. It exports the Dump and Load functions for converting Perl data structures to YAML strings, and the other way around. Security Fixes: YAML-Syck: YAML::Syck: Denial of Service via crafted YAML document CVE-2026-13713...

Important: perl-YAML-Syck

Issue Overview: 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, syckhdlraddanchor and syckhdlrremoveanchor free the node stored unde...

[SECURITY] Fedora 43 Update: perl-YAML-Syck-1.47-1.fc43

This module provides a Perl interface to the libsyck data serialization library. It exports the Dump and Load functions for converting Perl data structures to YAML strings, and the other way around...

Fedora 44 : perl-YAML-Syck (2026-2139aa7dce)

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-2139aa7dce advisory. This update addresses four libsyck memory-safety CVEs reachable from the default YAML::Syck::Load path on untrusted input with no special flags:...

AZL-92910 CVE-2026-57076 affecting package perl-YAML-Syck 1.34-1

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 syckhdlraddanchor. In the bundled libsyck an anchor name allocated by syckstrndup is stored both as node-anchor, freed when the node is freed, and as the key in the parser's...

CVE-2026-57077

YAML::Syck versions before 1.47 for Perl allow an out-of-bounds read via an unbounded newline scan in newlinelen. In the bundled libsyck newlinelen and isnewline dereference the scan pointer, and the following byte for a "\r\n" pair, with no NUL-terminator or bounds check. During block-scalar...

UBUNTU-CVE-2026-13713

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, syckhdlraddanchor and syckhdlrremoveanchor free the node stored under that name with...

CVE-2026-57075 YAML::Syck versions before 1.47 for Perl allow an out-of-bounds read via a signed-char lookup-table index in syck_base64dec

YAML::Syck versions before 1.47 for Perl allow an out-of-bounds read via a signed-char lookup-table index in syckbase64dec. The base64 decoder in the bundled libsyck indexes the 256-entry static table b64xtable with a signed char, so any !!binary byte = 0x80 sign-extends to a negative index and...

CVE-2026-13713

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, syckhdlraddanchor and syckhdlrremoveanchor free the node stored under that name with...

PT-2026-60588

Name of the Vulnerable Software and Affected Versions YAML::Syck versions prior to 1.47 Description An issue exists where a use-after-free and double-free occur via an anchor node that is freed while remaining on the parser value stack. In the bundled libsyck, when an anchor name is redefined or...

PT-2026-60593

Name of the Vulnerable Software and Affected Versions YAML::Syck versions prior to 1.47 Description An out-of-bounds read exists in the base64 decoder of the bundled libsyck. The issue occurs in the syck base64dec function, where the 256-entry static table b64 xtable is indexed using a signed cha...

Important: Red Hat Security Advisory: perl-YAML-Syck security update

An update for perl-YAML-Syck is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability...

[SECURITY] Fedora 42 Update: perl-YAML-Syck-1.39-1.fc42

This module provides a Perl interface to the libsyck data serialization library. It exports the Dump and Load functions for converting Perl data structures to YAML strings, and the other way around...

[SECURITY] Fedora 43 Update: perl-YAML-Syck-1.39-1.fc43

This module provides a Perl interface to the libsyck data serialization library. It exports the Dump and Load functions for converting Perl data structures to YAML strings, and the other way around...

[SECURITY] Fedora 44 Update: perl-YAML-Syck-1.39-1.fc44

This module provides a Perl interface to the libsyck data serialization library. It exports the Dump and Load functions for converting Perl data structures to YAML strings, and the other way around...

[SECURITY] Fedora 42 Update: perl-YAML-Syck-1.36-1.fc42

This module provides a Perl interface to the libsyck data serialization library. It exports the Dump and Load functions for converting Perl data structures to YAML strings, and the other way around...

[SECURITY] Fedora 41 Update: perl-YAML-Syck-1.36-1.fc41

This module provides a Perl interface to the libsyck data serialization library. It exports the Dump and Load functions for converting Perl data structures to YAML strings, and the other way around...