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BELL-CVE-2026-57076

Affected: Alpaquita:23: perl-yaml-syck, Alpaquita:25: perl-yaml-syck, Alpaquita:stream: perl-yaml-syck

fkie_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.

In the bundled libsyck an anchor name allocated by syck_strndup is stored both as node->anchor, freed when the node is freed, and as the key in the parser's anchors table. Freeing the node frees the shared key, and a later anchor redefinition makes st_delete compare against the freed key, so st_strcmp reads freed heap memory. Anchors are a standard YAML feature and need no special flags, so this is reached on the default Load path.

Any caller that runs Load or LoadFile on an untrusted document that redefines an anchor reaches the read of freed memory.

GHSA-q6x2-vfpr-9j7p

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.

Any caller that runs Load or LoadFile on an untrusted document that redefines an anchor reaches the read of freed memory.

openSUSE-SU-2026:11299-1 — perl-YAML-Syck-1.470.0-1.1 on GA media

perl-YAML-Syck-1.470.0-1.1 on GA media

UBUNTU-CVE-2026-57076

Affected: Ubuntu:Pro:16.04:LTS: libyaml-syck-perl, Ubuntu:Pro:18.04:LTS: libyaml-syck-perl, Ubuntu:Pro:20.04:LTS: libyaml-syck-perl, Ubuntu:Pro:22.04:LTS: libyaml-syck-perl, Ubuntu:Pro:24.04:LTS: libyaml-syck-perl, Ubuntu:26.04:LTS: libyaml-syck-perl

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 the node is freed, and as the key in the parser's anchors table. Freeing the node frees the shared key, and a later anchor redefinition makes st_delete compare against the freed key, so st_strcmp reads freed heap memory. Anchors are a standard YAML feature and need no special flags, so this is reached on the default Load path. Any caller that runs Load or LoadFile on an untrusted document that redefines an anchor reaches the read of freed memory.

WID-SEC-W-2026-2508 — cPanel cPanel/WHM: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in cPanel cPanel/WHM ausnutzen, um möglicherweise beliebigen Code auszuführen, vertrauliche Informationen offenzulegen, Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren oder einen Denial-of-Service-Zustand herbeizuführen.