CVE-2026-57076

A flaw was found in YAML::Syck. An attacker could exploit a heap use-after-free vulnerability by providing a specially crafted YAML document that reuses an anchor name as an anchors-table key. This flaw causes the software to read freed heap memory, which may lead to information disclosure or...

Linux Distros Unpatched Vulnerability : CVE-2026-57076

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

DEBIAN-CVE-2026-57076

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-2026-57076

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-2026-57076

CVE-2026-57076 affects YAML::Syck in Perl before version 1.47. The underlying issue is a heap use-after-free caused by reusing an anchor name as a key in the anchors table within syck_hdlr_add_anchor. An anchor name allocated by syck_strndup is stored both in node->anchor (freed with the node)...

CVE-2026-57076 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

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-2026-57076 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

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...

PT-2026-60594

Name of the Vulnerable Software and Affected Versions YAML::Syck versions prior to 1.47 Description A heap use-after-free occurs when an anchor name is reused as an anchors-table key in the syck hdlr add anchor function. In the bundled libsyck, an anchor name allocated by syck strndup is stored a...