EUVD-2026-104556

Cpanel::JSON::XS versions from 4.33 before 4.80 for Perl accept malformed UTF-8 in bare hash keys under allowbarekey in decodehv. With utf8 and allowbarekey, which relaxed enables, a quoted key is validated as UTF-8 but a bare key's bytes are stored as a UTF-8 flagged string without any check...

CVE-2026-110675

The Cpanel::JSON::XS Perl module (versions 4.33 to 4.79 ) is vulnerable to the acceptance of malformed UTF-8 in bare hash keys when the allow_barekey option is enabled in decode_hv. While quoted keys undergo UTF-8 validation, bare keys are stored as UTF-8 flagged strings without verification, all...

CVE-2026-110674 Cpanel::JSON::XS versions from 4.33 before 4.80 for Perl miss duplicate non-ASCII bare keys, allowing type confusion under dupkeys_as_arrayref in decode_hv

Cpanel::JSON::XS versions from 4.33 before 4.80 for Perl miss duplicate non-ASCII bare keys, allowing type confusion under dupkeysasarrayref in decodehv. With allowbarekey, which relaxed enables, a bare key containing a non-ASCII byte is stored as UTF-8 but looked up as raw bytes, so a repeated k...

CVE-2026-110674

The Cpanel::JSON::XS Perl module versions from 4.33 before 4.80 are vulnerable to type confusion under the dupkeys_as_arrayref and allow_barekey options in the decode_hv function. The root cause is that bare keys containing non-ASCII bytes are stored as UTF-8 but looked up as raw bytes, allowing ...

CVE-2026-110674

Cpanel::JSON::XS versions from 4.33 before 4.80 for Perl miss duplicate non-ASCII bare keys, allowing type confusion under dupkeysasarrayref in decodehv. With allowbarekey, which relaxed enables, a bare key containing a non-ASCII byte is stored as UTF-8 but looked up as raw bytes, so a repeated k...

CVE-2026-110674 Cpanel::JSON::XS versions from 4.33 before 4.80 for Perl miss duplicate non-ASCII bare keys, allowing type confusion under dupkeys_as_arrayref in decode_hv

Cpanel::JSON::XS versions from 4.33 before 4.80 for Perl miss duplicate non-ASCII bare keys, allowing type confusion under dupkeysasarrayref in decodehv. With allowbarekey, which relaxed enables, a bare key containing a non-ASCII byte is stored as UTF-8 but looked up as raw bytes, so a repeated k...

EUVD-2026-104555

Cpanel::JSON::XS versions from 4.33 before 4.80 for Perl miss duplicate non-ASCII bare keys, allowing type confusion under dupkeysasarrayref in decodehv. With allowbarekey, which relaxed enables, a bare key containing a non-ASCII byte is stored as UTF-8 but looked up as raw bytes, so a repeated k...

CVE-2026-110674

Cpanel::JSON::XS versions from 4.33 before 4.80 for Perl miss duplicate non-ASCII bare keys, allowing type confusion under dupkeysasarrayref in decodehv. With allowbarekey, which relaxed enables, a bare key containing a non-ASCII byte is stored as UTF-8 but looked up as raw bytes, so a repeated k...

CVE-2026-110674 Cpanel::JSON::XS versions from 4.33 before 4.80 for Perl miss duplicate non-ASCII bare keys, allowing type confusion under dupkeys_as_arrayref in decode_hv

Cpanel::JSON::XS versions from 4.33 before 4.80 for Perl miss duplicate non-ASCII bare keys, allowing type confusion under dupkeysasarrayref in decodehv. With allowbarekey, which relaxed enables, a bare key containing a non-ASCII byte is stored as UTF-8 but looked up as raw bytes, so a repeated k...

CVE-2026-110673 Cpanel::JSON::XS versions before 4.80 for Perl allow stack exhaustion via nested tagged values under allow_tags in decode_tag

Cpanel::JSON::XS versions before 4.80 for Perl allow stack exhaustion via nested tagged values under allowtags in decodetag. With allowtags, "" starts a tagged value. Its tag and value are decoded recursively, and each can start another tagged value. Unlike arrays and objects, this nesting is not...

EUVD-2026-104554

Cpanel::JSON::XS versions before 4.80 for Perl allow stack exhaustion via nested tagged values under allowtags in decodetag. With allowtags, "" starts a tagged value. Its tag and value are decoded recursively, and each can start another tagged value. Unlike arrays and objects, this nesting is not...

CVE-2026-110673

The Cpanel::JSON::XS Perl module (versions before 4.80 ) is vulnerable to stack exhaustion due to nested tagged values processed via the decode_tag function when the allow_tags option is enabled. Because the nesting of tagged values is not accounted for against the max_depth limit, a sequence of ...

CVE-2026-110673 Cpanel::JSON::XS versions before 4.80 for Perl allow stack exhaustion via nested tagged values under allow_tags in decode_tag

Cpanel::JSON::XS versions before 4.80 for Perl allow stack exhaustion via nested tagged values under allowtags in decodetag. With allowtags, "" starts a tagged value. Its tag and value are decoded recursively, and each can start another tagged value. Unlike arrays and objects, this nesting is not...

CVE-2026-110673

Cpanel::JSON::XS versions before 4.80 for Perl allow stack exhaustion via nested tagged values under allowtags in decodetag. With allowtags, "" starts a tagged value. Its tag and value are decoded recursively, and each can start another tagged value. Unlike arrays and objects, this nesting is not...

CVE-2026-110673

Cpanel::JSON::XS versions before 4.80 for Perl allow stack exhaustion via nested tagged values under allowtags in decodetag. With allowtags, "" starts a tagged value. Its tag and value are decoded recursively, and each can start another tagged value. Unlike arrays and objects, this nesting is not...

CVE-2026-110673 Cpanel::JSON::XS versions before 4.80 for Perl allow stack exhaustion via nested tagged values under allow_tags in decode_tag

Cpanel::JSON::XS versions before 4.80 for Perl allow stack exhaustion via nested tagged values under allowtags in decodetag. With allowtags, "" starts a tagged value. Its tag and value are decoded recursively, and each can start another tagged value. Unlike arrays and objects, this nesting is not...

CVE-2026-110672 Cpanel::JSON::XS versions before 4.80 for Perl leak the decoded key of an object rejected for a duplicate key or a missing colon in decode_hv

Cpanel::JSON::XS versions before 4.80 for Perl leak the decoded key of an object rejected for a duplicate key or a missing colon in decodehv. A quoted key of 24 or more bytes, or one containing a non-ASCII byte or an escape sequence, is decoded into a new scalar. Nothing frees that scalar when th...

CVE-2026-110672 Cpanel::JSON::XS versions before 4.80 for Perl leak the decoded key of an object rejected for a duplicate key or a missing colon in decode_hv

Cpanel::JSON::XS versions before 4.80 for Perl leak the decoded key of an object rejected for a duplicate key or a missing colon in decodehv. A quoted key of 24 or more bytes, or one containing a non-ASCII byte or an escape sequence, is decoded into a new scalar. Nothing frees that scalar when th...

CVE-2026-110672

The perl-Cpanel-JSON-XS module in Perl versions prior to 4.80 contains a memory leak in the decode_hv function. The vulnerability occurs when a quoted key of 24 or more bytes, or one containing a non-ASCII byte or escape sequence, is decoded into a new scalar. If the object is subsequently reject...

CVE-2026-110672

Cpanel::JSON::XS versions before 4.80 for Perl leak the decoded key of an object rejected for a duplicate key or a missing colon in decodehv. A quoted key of 24 or more bytes, or one containing a non-ASCII byte or an escape sequence, is decoded into a new scalar. Nothing frees that scalar when th...