Security update for perl-Cpanel-JSON-XS

This update for perl-Cpanel-JSON-XS fixes the following issues: CVE-2025-40929: integer overflow bsc1249331. CVE-2026-9334: type confusion via duplicate object keys when dupkeysasarrayref is enabled bsc1267546. CVE-2026-9516: denial of service via UTF-8 BOM prefixed input when a decode filter...

Fedora 44 : perl-Cpanel-JSON-XS (2026-3ab4727120)

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-3ab4727120 advisory. Current upstream release, with multiple security fixes, updates for performance and correctness. Tenable has extracted the preceding description blo...

Fedora 43 : perl-Cpanel-JSON-XS (2026-4447e52d23)

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-4447e52d23 advisory. Current upstream release, with multiple security fixes, updates for performance and correctness. Tenable has extracted the preceding description blo...

OPENSUSE-SU-2026:12217-1 perl-Cpanel-JSON-XS-4.800.0-1.1 on GA media

These are all security issues fixed in the perl-Cpanel-JSON-XS-4.800.0-1.1 package on the GA media of openSUSE Tumbleweed...

CVE-2026-110673

A flaw was found in perl-Cpanel-JSON-XS. When the allowtags configuration is enabled, the "" character 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 counted against maxdepth. A maliciously...

CVE-2026-110686

A flaw was found in perl-Cpanel-JSON-XS. During decoding, the parser copies the filterjsonobject and filterjsonsinglekeyobject callbacks without taking references to them. If a filter callback removes the last single-key filter, it frees the callback table while the ongoing decode process is stil...

CVE-2026-110681

A flaw was found in perl-Cpanel-JSON-XS. A parser object holds its callbacks and its incremental parse buffer as raw scalar pointers. When a new thread is created, these pointers are copied into the new interpreter unchanged. As a result, the child's parser uses, and later frees, scalars that...

CVE-2026-110682

A flaw was found in perl-Cpanel-JSON-XS. The allownonref configuration is enabled by default, and the incrparse function inherits it. Because a top-level number, boolean true or false, or null has no closing delimiter, the incremental parser simply decodes whatever data has arrived at the time of...

CVE-2026-110680

A flaw was found in perl-Cpanel-JSON-XS. When the canonical configuration is enabled, the keys of a tied or threads::shared hash are counted in a first pass before a second pass collects them for sorting. The encoder allocates a fixed 64-entry stack array or, for larger counts, a heap array sized...

CVE-2026-110684

A flaw was found in perl-Cpanel-JSON-XS. When encoding certain overloaded objects into string representations, under allowstringify, convertblessed or allowbignum, the encodestringify function retains unreleased references and fails to free allocated memory. An attacker capable of submitting...

CVE-2026-110685

A flaw was found in perl-Cpanel-JSON-XS. When the allowtags configuration is enabled, a tagged value's class name and argument array are decoded and passed to the class's THAW method. Both are released only after the THAW method returns. Therefore, if a THAW method dies throws an exception, the...

CVE-2026-110677

A flaw was found in perl-Cpanel-JSON-XS. When the dupkeysasarrayref configuration is enabled, the values of a duplicate object key are collected into a new array. However, an extra reference is never released, causing the array and every value within it to outlive the decoded structure. The array...

CVE-2026-110674

A flaw was found in perl-Cpanel-JSON-XS. When the allowbarekey configuration enabled by the relaxed setting is active, a bare key containing a non-ASCII byte is stored as UTF-8 but looked up as raw bytes. This allows a repeated key to bypass the duplicate-key check and replace the earlier value...

CVE-2026-110678

A flaw was found in perl-Cpanel-JSON-XS. The parser appends each chunk to its buffer. In scalar or list context, it compares maxsize with how far it has progressed, not with the total buffer length. A chunk that starts with a NUL byte stops the parser before it progresses, and a call in void...

AZL-109851 CVE-2026-110685 affecting package perl-Cpanel-JSON-XS 4.39-1

Cpanel::JSON::XS versions before 4.80 for Perl leak the decoded arguments of a tagged value when its THAW method dies in decodetag. With allowtags, a tagged value's class name and argument array are decoded and passed to the class's THAW method. Both are released only after THAW returns, so a THA...

AZL-109860 CVE-2026-110686 affecting package perl-Cpanel-JSON-XS 4.39-1

Cpanel::JSON::XS versions before 4.80 for Perl use freed filter callbacks when a filter removes itself during decoding in decodehv. A decode copies the parser's filterjsonobject and filterjsonsinglekeyobject callbacks without taking references to them. A filter callback that removes the last...

AZL-109866 CVE-2026-110680 affecting package perl-Cpanel-JSON-XS 4.39-1

Cpanel::JSON::XS versions from 4.20 before 4.80 for Perl write out of bounds when a tied or shared hash grows during canonical encoding in encodehv. With canonical, the keys of a tied or threads::shared hash are counted before a second pass collects them for sorting. The encoder uses a fixed...

AZL-109836 CVE-2026-110674 affecting package perl-Cpanel-JSON-XS 4.39-1

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...

AZL-109848 CVE-2026-110684 affecting package perl-Cpanel-JSON-XS 4.39-1

Cpanel::JSON::XS versions from 3.0202 before 4.80 for Perl leak memory and retain overloaded objects when encoding values as strings in encodestringify. encodestringify writes a value in its string form under allowstringify, under convertblessed for objects without TOJSON, and under allowbignum...

AZL-109845 CVE-2026-110676 affecting package perl-Cpanel-JSON-XS 4.39-1

Cpanel::JSON::XS versions before 4.80 for Perl allow memory exhaustion by encoding exponent notation as full decimal digits under allowbignum. With allowbignum, a JSON number with a fraction or exponent decodes to a Math::BigFloat, which stores the exponent separately and so decodes cheaply...