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BELL-CVE-2026-57075

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

fkie_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.

The base64 decoder in the bundled libsyck indexes the 256-entry static table b64_xtable with a signed char, so any !!binary byte >= 0x80 sign-extends to a negative index and reads before the table. The decoder receives the raw bytes of any !!binary node, a standard YAML type not gated by $LoadBlessed or $LoadCode, so it is reached on the default Load path.

Any caller that runs Load or LoadFile on an untrusted document containing a !!binary scalar with a high-bit byte triggers the read, and the value read can surface in the decoded result.

GHSA-fwh5-hwhp-qgp4

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

Any caller that runs Load or LoadFile on an untrusted document containing a !!binary scalar with a high-bit byte triggers the read, and the value read can surface in the decoded result.

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-2026-57075

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 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 byte >= 0x80 sign-extends to a negative index and reads before the table. The decoder receives the raw bytes of any !!binary node, a standard YAML type not gated by $LoadBlessed or $LoadCode, so it is reached on the default Load path. Any caller that runs Load or LoadFile on an untrusted document containing a !!binary scalar with a high-bit byte triggers the read, and the value read can surface in the decoded result.

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.