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SUSE-SU-2026:4926-1

Опубликовано: 28 окт. 2026
Источник: suse-cvrf

Описание

Security update for perl-Cpanel-JSON-XS

This update for perl-Cpanel-JSON-XS fixes the following issues:

  • CVE-2025-40929: integer overflow (bsc#1249331).
  • CVE-2026-9334: type confusion via duplicate object keys when dupkeys_as_arrayref is enabled (bsc#1267546).
  • CVE-2026-9516: denial of service via UTF-8 BOM prefixed input when a decode filter callback throws (bsc#1267547).
  • CVE-2026-110672: leak of decoded key of an object rejected for a duplicate key or a missing colon in decode_hv (bsc#1286166).
  • CVE-2026-110673: stack exhaustion via nested tagged values under allow_tags in decode_tag (bsc#1286167).
  • CVE-2026-110674: duplicate non-ASCII bare keys are missed, allowing type confusion under dupkeys_as_arrayref in decode_hv (bsc#1286168).
  • CVE-2026-110675: malformed UTF-8 accepted in bare hash keys under allow_barekey in decode_hv (bsc#1286169).
  • CVE-2026-110676: memory exhaustion by encoding exponent notation as full decimal digits under allow_bignum (bsc#1286170).
  • CVE-2026-110677: array collecting duplicate key values leaked under dupkeys_as_arrayref in decode_hv (bsc#1286173).
  • CVE-2026-110678: memory exhaustion by buffering incremental input past max_size in incr_parse (bsc#1286174).
  • CVE-2026-110680: out-of-bounds write when a tied or shared hash grows during canonical encoding in encode_hv (bsc#1286175).
  • CVE-2026-110681: parent interpreter's scalars from a parser object cloned into a new ithread (bsc#1286176).
  • CVE-2026-110682: input chunking can change the decoded value of top-level numbers in incr_parse (bsc#1286177).
  • CVE-2026-110684: memory leaked and overloaded objects retained when encoding values as strings in encode_stringify (bsc#1286179).
  • CVE-2026-110685: decoded arguments of a tagged value leaked when its THAW method dies in decode_tag (bsc#1286180).
  • CVE-2026-110686: freed filter callbacks used when a filter removes itself during decoding in decode_hv (bsc#1286181).
  • CVE-2026-110687: byte-string keys misordered during canonical encoding in utf16_cmp (bsc#1286182).
  • CVE-2026-110688: quadratic CPU use due to remaining buffer revalidation per value in incr_parse (bsc#1286183).

Changes for perl-Cpanel-JSON-XS:

  • updated to 4.800.0 (4.80)
  • Add version markers to all module files. (PR #260 demerphq)
  • Use utf8n_to_uvchr on Perl 5.32 and later to avoid the deprecated utf8n_to_uvuni API. (PR #260 demerphq)
  • Add schema-based validation for decoded JSON (GH #238): Cpanel::JSON::XS::Type now provides check_type($data, $schema[, $found_type]), which validates an already-decoded perl structure against a type spec built from the existing encoder building blocks (JSON_TYPE_* / json_type_arrayof / json_type_hashof / json_type_anyof), plus the new json_type_optional() for hash keys that may be absent, and short scalar type name sugar ('Str', 'Int', 'Float', 'Bool', 'Null', 'Any', and nullable 'Str?' etc.) so a schema reads as 'just a hash of keys and types', as requested. Unlike the encoder's hash type spec, a plain hashref schema is closed: unknown keys and missing required keys are reported. New $json->decode_and_validate($json_text, $schema) method decodes and croaks with all mismatches if validation fails, using decode()'s own type introspection as ground truth to avoid perl's usual dual-var/stringified-number ambiguity.
  • json_type_optional() and the nullable '?' type-name suffixes ('Str?', 'Int?', 'Float?', 'Bool?') give schemas an explicit way to declare a key/value as optional instead of demanding a complete type specification for every key. The encoder now also understands json_type_optional() directly (it unwraps to the wrapped type, since encode() only ever sees keys that are actually present): the exact same type spec built for check_type()/decode_and_validate() can now be handed to encode() as-is, instead of croaking with 'no type was specified for hash key '...'' for every optional key. Encoding stays strict by default otherwise: a hash key with no entry at all in the type spec still croaks (GH #242). eg/bench_large.pl: old encode: 20.5--22.9/s decode: 16.2--16.5/s for 4.53 new encode: 21.1--22.5/s decode: 15.7--16.3/s for 4.80 4.53 2026-09-28 (rurban)
  • Fix C90 violations with arm neon (GH #258 rjbs)
  • Added a native arm64 test runner.
  • updated to 4.520.0 (4.52) 4.52 2026-09-12 (rurban)
  • OSX 10.9 fix for SIMD UTF-8 (Christian Carey)
  • Change my maintainer email to reini.urban@gmail.com 4.51 2026-09-11 (rurban)
  • Add faster SIMD UTF-8 validation (GH #213, Zhang Boyang)
  • Fix tests for yath (GH #255, with H.Merijn Brand): the test files now work with Test2::Harness instead of only Test::Harness, and a yath run is added to make xtest when yath is installed.
  • Skip one t/117_numbers.t test on Perls with 32-bit IVs (GH #254, Jeremy Hansen). 4.50 2026-09-08 (rurban)
  • Add $json->encode_to($fh, $data, [$type]) to stream encoded JSON directly to a filehandle instead of building the whole result in memory (GH #250, requested by yairlenga. designed 2016 in GH #58). Internally flushes a bounded 8k chunk buffer as it fills, keeping peak memory bounded for large data structures.
  • Encoder performance improvements suggested in GH #237 (17dec):
  • Large-integer encoding now uses a 100-digit lookup table instead of snprintf, roughly 2x faster for integers outside the existing branchless small-integer fast path (|value| > 59000).
  • encode_str now bulk-copies runs of consecutive bytes that need no escaping instead of a need()+store per byte, notably faster for strings with few or no characters to escape. Added eg/bench_large.pl with results.
  • updated to 4.440.0 (4.44) 4.44 2026-09-02 (rurban)
  • Fix canonical sort infinite loop (GH #252 amelchio): malformed UTF-8 keys (e.g. Latin-1 byte strings mixed with Unicode) made utf16_cmp treat the decoder's (STRLEN)-1 malformed sentinel as a length, wrapping the buffer pointer. Now checked as 0 or > remaining length.
  • updated to 4.430.0 (4.43) 4.43 2026-07-18 (rurban)
  • Fix canonical sort: compare by UTF-16 code units per RFC 8785 (GH #248, leont)
  • Fix canonical sort on Perl 5.8-5.18: utf16_cmp now always attempts UTF-8 decoding instead of checking SvUTF8 flag, since older Perls may store valid UTF-8 hash keys without the flag set.
  • Fix quadmath encode dropping '.0' for large floats (GH #246, reported by Tux). The .0 guard condition that suppressed appending for NV values > UV_MAX was incorrect on high-precision FP (quadmath, 128-bit long double on arm64) where %g uses fixed-point notation for values like 1.01e30. Guarded with #if NV_DIG < 31 to skip only on double/80-bit-ld where %g naturally uses %e for large values.
  • updated to 4.420.0 (4.42) 4.42 2026-06-27 (rurban)
  • Ensure encode with a type spec hashref does not change the hashref argument (GH #240)
  • Fix -e docs: 'written' -> 'read' (GH #239, reported by Ron Savage).
  • Fix Boolean eq overload matching undef (GH #207, reported by fd-t). Cpanel::JSON::XS::Boolean overloaded eq would match undef as equal to false because undef stringifies to ''. Added defined() guard.
  • Fix error messages showing overloaded stringification for blessed objects (GH #191, reported by karenetheridge). Error messages now use ClassName=TYPE(addr) format, bypassing any '' overload.
  • Fix type_all_string overriding allow_blessed/convert_blessed (GH #175, reported by alpha6). With type_all_string + allow_blessed, blessed objects are now encoded as null (not stringified as HASH address).
  • Fix infinite recursion when encode is called from a '' overload (GH #128, reported by pbrthemaster). The recursion guard temporarily clears convert_blessed and allow_stringify flags on the JSON object before calling the overload, preventing re-entrant encode loops.
  • Fix $obj->new creating a broken object (GH #93, reported by cpansprout). When new() is called on an existing object (e.g. $json->new->new), the class name is now extracted from the object's stash rather than using the stringified reference.
  • Change allow_nonref default to true (GH #241, matching JSON::PP and JSON::XS 4.0+ and the insecure RFC 7159). encode and decode now accept non-reference values by default. decode_json() with an explicit 0/1 second argument still works. allow_nonref(0) to disable scalars-only for secure JSON.
  • Fix minor t/12_blessed.t typo.
  • Fix GH #112: encode large whole-number NV values without .0 on 32-bit Perl (values exceeding UV_MAX that Perl stores as float).
  • Fix GH #197: prefer IOK over pNOK when encoding values where IV is accurate but NV is imprecise (SvNOK not set).
  • updated to 4.410.0 (4.41) 4.41 2026-05-27 (rurban)
  • Fix incr_parse single-quote string delimiter (GH #245, reported by Paul Johnson)
  • Fix a one-byte out-of-bounds heap read reachable via allow_barekey on truncated input (GH #244, reported by Paul Johnson)
  • updated to 4.400.0 (4.40) 4.40 2025-09-07 (rurban)
  • Fix CVE-2025-40929 overflow with overlong numbers, fuzzing only.
  • Detect more malformed numbers, with two decimal points.
  • Pin github actions to latest @v via pinact run -u (bsc#1249331)
  • updated to 4.390.0 (4.39) 4.39 2024-12-12 (rurban)
  • Fix Windows -Dusequadmath (sisyphus GH #235, GH #229)
  • Fix inconsistent behavior between decoding escaped and unescaped surrogates, and escaped non-characters vs non-escaped non-characters. Now aligned to JSON::PP (Gavin Hayes GH #233, GH #227)
  • Add type_all_string tests (Bernhard Schmalhofer GH #236)
  • Silence UV to char cast warnings (bulk88 GH #232)
  • Fix MSVC preprocessor errors (bulk88 GH #232)
  • Fix -Wformat warnings on Windows (sisyphus GH #228)
  • Clarify BigInt decoding (GH #226)

Список пакетов

SUSE Linux Enterprise Module for Package Hub 15 SP7
perl-Cpanel-JSON-XS-4.800.0-150700.3.9.1

Описание

Cpanel::JSON::XS before version 4.40 for Perl has an integer buffer overflow causing a segfault when parsing crafted JSON, enabling denial-of-service attacks or other unspecified impact


Затронутые продукты
SUSE Linux Enterprise Module for Package Hub 15 SP7:perl-Cpanel-JSON-XS-4.800.0-150700.3.9.1

Ссылки

Описание

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. 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 the object is rejected for a missing ':' after the key or, from 4.09, for a duplicate key. Duplicate keys are an error unless allow_dupkeys, dupkeys_as_arrayref or relaxed is set. A process that keeps running after a failed decode retains one key per rejected document, with its size chosen by the sender. Repeated requests exhaust process memory.


Затронутые продукты
SUSE Linux Enterprise Module for Package Hub 15 SP7:perl-Cpanel-JSON-XS-4.800.0-150700.3.9.1

Ссылки

Описание

Cpanel::JSON::XS versions before 4.80 for Perl allow stack exhaustion via nested tagged values under allow_tags in decode_tag. With allow_tags, "(" 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 max_depth. A run of "(" bytes exhausts the C stack and triggers an uncatchable segmentation fault regardless of max_depth.


Затронутые продукты
SUSE Linux Enterprise Module for Package Hub 15 SP7:perl-Cpanel-JSON-XS-4.800.0-150700.3.9.1

Ссылки

Описание

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. With allow_barekey, 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 key escapes the duplicate-key check and replaces the earlier value. From 4.41, under dupkeys_as_arrayref, a bare repeat replaces the array that collects a key's values with a plain value, and the next quoted repeat pushes onto that value as if it were an array. A JSON integer there is dereferenced as a pointer. Untrusted JSON decoded with relaxed and dupkeys_as_arrayref can crash the process or dereference an address chosen by a JSON number.


Затронутые продукты
SUSE Linux Enterprise Module for Package Hub 15 SP7:perl-Cpanel-JSON-XS-4.800.0-150700.3.9.1

Ссылки

Описание

Cpanel::JSON::XS versions from 4.33 before 4.80 for Perl accept malformed UTF-8 in bare hash keys under allow_barekey in decode_hv. With utf8 and allow_barekey, 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. Malformed UTF-8, control bytes and backslashes reach the decoded hash, while malformed UTF-8 and control bytes in a quoted key or a value are rejected. Later operations on the key, including lc, uc or encoding the hash again, die with a malformed UTF-8 error.


Затронутые продукты
SUSE Linux Enterprise Module for Package Hub 15 SP7:perl-Cpanel-JSON-XS-4.800.0-150700.3.9.1

Ссылки

Описание

Cpanel::JSON::XS versions before 4.80 for Perl allow memory exhaustion by encoding exponent notation as full decimal digits under allow_bignum. With allow_bignum, a JSON number with a fraction or exponent decodes to a Math::BigFloat, which stores the exponent separately and so decodes cheaply. Encoding it untyped or as JSON_TYPE_FLOAT writes the plain decimal form with one digit per unit of exponent. Nothing bounds the exponent, so the 12-byte text [1e30000000] encodes to 30 MB. Untrusted JSON decoded with allow_bignum and encoded again can exhaust memory and CPU.


Затронутые продукты
SUSE Linux Enterprise Module for Package Hub 15 SP7:perl-Cpanel-JSON-XS-4.800.0-150700.3.9.1

Ссылки

Описание

Cpanel::JSON::XS versions from 4.28 before 4.80 for Perl leak the array collecting duplicate key values under dupkeys_as_arrayref in decode_hv. With dupkeys_as_arrayref, the values of a duplicate object key are collected into a new array. An extra reference is never released, so the array and every value in it outlive the decoded structure. The array also leaks when decoding fails after a duplicate key. Repeatedly decoding untrusted JSON with a duplicate key holding a large value exhausts process memory.


Затронутые продукты
SUSE Linux Enterprise Module for Package Hub 15 SP7:perl-Cpanel-JSON-XS-4.800.0-150700.3.9.1

Ссылки

Описание

Cpanel::JSON::XS versions before 4.80 for Perl allow memory exhaustion by buffering incremental input past max_size in incr_parse. The parser appends each chunk to its buffer. In scalar or list context, it compares max_size with how far it has progressed, not with the buffer length. A chunk that starts with a NUL byte stops the parser before it progresses, and a call in void context skips the check, so the buffer grows without limit. A peer streaming data to an incr_parse consumer can exhaust process memory regardless of max_size.


Затронутые продукты
SUSE Linux Enterprise Module for Package Hub 15 SP7:perl-Cpanel-JSON-XS-4.800.0-150700.3.9.1

Ссылки

Описание

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 encode_hv. 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 64-entry stack array or, for larger counts, a heap array sized from the first pass. If the second pass exceeds that capacity, entries are written out of bounds before the counts are compared. This corrupts stack or heap memory and can crash the process.


Затронутые продукты
SUSE Linux Enterprise Module for Package Hub 15 SP7:perl-Cpanel-JSON-XS-4.800.0-150700.3.9.1

Ссылки

Описание

Cpanel::JSON::XS versions before 4.80 for Perl use the parent interpreter's scalars from a parser object cloned into a new ithread. A parser object holds its callbacks and its incremental parse buffer as raw scalar pointers. When a thread is created, these are copied into the new interpreter unchanged, so the child's parser uses, and later frees, scalars that belong to the parent and may already have been freed there. A parser created before a thread starts and used inside it can call freed callbacks, corrupt reference counts and crash the process.


Затронутые продукты
SUSE Linux Enterprise Module for Package Hub 15 SP7:perl-Cpanel-JSON-XS-4.800.0-150700.3.9.1

Ссылки

Описание

Cpanel::JSON::XS versions from 4.42 before 4.80 for Perl let input chunking change the decoded value of top-level numbers in incr_parse. allow_nonref is enabled by default and incr_parse inherits it. A top-level number, true, false or null has no closing delimiter, so the incremental parser decodes whatever has arrived. The bytes 12 decode as one value when read together, but as 1 and then 2 when split across two reads. A peer that can influence read boundaries can change how many messages a stream consumer decodes and what values they carry.


Затронутые продукты
SUSE Linux Enterprise Module for Package Hub 15 SP7:perl-Cpanel-JSON-XS-4.800.0-150700.3.9.1

Ссылки

Описание

Cpanel::JSON::XS versions from 3.0202 before 4.80 for Perl leak memory and retain overloaded objects when encoding values as strings in encode_stringify. encode_stringify writes a value in its string form under allow_stringify, under convert_blessed for objects without TO_JSON, and under allow_bignum. For an array or hash object with a "" overload, and from 4.20 a scalar object, it takes an extra reference that is never released, so the object and everything it references are never freed. From 4.10 it also never frees its copy of the string. Repeatedly encoding data that contains such values grows process memory without bound.


Затронутые продукты
SUSE Linux Enterprise Module for Package Hub 15 SP7:perl-Cpanel-JSON-XS-4.800.0-150700.3.9.1

Ссылки

Описание

Cpanel::JSON::XS versions before 4.80 for Perl leak the decoded arguments of a tagged value when its THAW method dies in decode_tag. With allow_tags, 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 THAW that dies leaves the whole decoded argument structure allocated. Each rejected document leaks data of a size the sender chooses, so a process that catches the error and keeps running exhausts its memory.


Затронутые продукты
SUSE Linux Enterprise Module for Package Hub 15 SP7:perl-Cpanel-JSON-XS-4.800.0-150700.3.9.1

Ссылки

Описание

Cpanel::JSON::XS versions before 4.80 for Perl use freed filter callbacks when a filter removes itself during decoding in decode_hv. A decode copies the parser's filter_json_object and filter_json_single_key_object callbacks without taking references to them. A filter callback that removes the last single-key filter frees the callback table while the decode in progress still uses it. The next object is dispatched through freed memory and can crash the process.


Затронутые продукты
SUSE Linux Enterprise Module for Package Hub 15 SP7:perl-Cpanel-JSON-XS-4.800.0-150700.3.9.1

Ссылки

Описание

Cpanel::JSON::XS versions from 4.43 before 4.80 for Perl misorder byte-string keys during canonical encoding in utf16_cmp. canonical sorts keys by UTF-16 code units. When any key in a hash is UTF-8 flagged, every key is decoded as UTF-8 for the comparison, including byte-string keys that the encoder writes out as Latin-1 characters. A byte-string key whose bytes are valid UTF-8 is sorted out of order, and two keys that encode differently can compare equal and are left in hash order. The same data can encode to different canonical documents across processes.


Затронутые продукты
SUSE Linux Enterprise Module for Package Hub 15 SP7:perl-Cpanel-JSON-XS-4.800.0-150700.3.9.1

Ссылки

Описание

Cpanel::JSON::XS versions from 4.51 before 4.80 for Perl allow quadratic CPU use by revalidating the remaining buffer per value in incr_parse. At the first non-ASCII byte in a string, the decoder validates UTF-8 from there to the end of its input. incr_parse decodes each buffered value with a fresh decoder, so every value revalidates the rest of the buffer, and doubling the input quadruples the work. A peer that sends about a megabyte of ordinary non-ASCII JSON in one read ties up the process for seconds of CPU time.


Затронутые продукты
SUSE Linux Enterprise Module for Package Hub 15 SP7:perl-Cpanel-JSON-XS-4.800.0-150700.3.9.1

Ссылки

Описание

Cpanel::JSON::XS versions before 4.41 for Perl allow type confusion via duplicate object keys when dupkeys_as_arrayref is enabled. decode_hv() collapses duplicate object keys into an array reference under dupkeys_as_arrayref. The branch reached for a duplicate key tests `SvTYPE (old_value) != SVt_RV && SvTYPE (SvRV (old_value)) != SVt_PVAV`, which evaluates SvRV(old_value) before establishing that old_value is a reference. When the existing value is a plain scalar rather than an array reference, a non-reference scalar is dereferenced as a reference. A caller decoding untrusted JSON with dupkeys_as_arrayref enabled is crashed, and the incompatible access follows a pointer taken from attacker controlled scalar contents.


Затронутые продукты
SUSE Linux Enterprise Module for Package Hub 15 SP7:perl-Cpanel-JSON-XS-4.800.0-150700.3.9.1

Ссылки

Описание

Cpanel::JSON::XS versions before 4.41 for Perl allow denial of service via UTF-8 BOM prefixed input when a decode filter callback throws. To skip a leading 3-byte UTF-8 BOM, decode_json() advances the input scalar's string pointer past the mark with SvPV_set() and restores it only on the normal return path. When decoding aborts through a Perl exception, for example a filter_json_object callback that croaks, the restore is skipped and the scalar is left with its string pointer offset into its own buffer and a shortened length. When that scalar is later freed, the allocator receives an invalid pointer and the interpreter aborts. A single BOM prefixed document decoded with a throwing filter callback crashes any caller.


Затронутые продукты
SUSE Linux Enterprise Module for Package Hub 15 SP7:perl-Cpanel-JSON-XS-4.800.0-150700.3.9.1

Ссылки
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