CVE-2026-110675

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 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

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 through 4.79 ) is vulnerable to an issue where malformed UTF-8 is accepted in bare hash keys when both utf8 and allow_barekey options are enabled in decode_hv. While quoted keys are validated, bare keys are stored as UTF-8 flagged strings without pr...

CVE-2026-110675 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

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...

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...

PT-2026-117573

Name of the Vulnerable Software and Affected Versions Cpanel::JSON::XS versions 4.33 through 4.79 Description The software accepts malformed UTF-8 in bare hash keys when the allow barekey option is enabled within the decode hv function. While quoted keys are validated as UTF-8, bare keys are stor...

DEBIAN-CVE-2026-110759

Text::CSVXS versions before 1.65 for Perl return a 0xFF byte that is not in the input for an empty last field followed by a lone CR in parse. When the input to parse ends in a separator and a lone CR, the parser treats the end of the input as the next character and stores the end-of-file marker i...

Linux Distros Unpatched Vulnerability : CVE-2026-110759

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Text::CSVXS versions before 1.65 for Perl return a 0xFF byte that is not in the input for an empty last field followed by a lone CR in parse. When the input to...

EUVD-2026-93775

RabbitMQ: Malformed UTF-8 in shortstr properties permanently disables RPC consumers...

Security Bulletin:UltraJSON Malformed UTF-8 Byte Sequence Vulnerability

Summary UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7+. Prior to 5.13.0, ujson.dumps or ujson.dump or ujson.encode have a rejectbytes=False option. When set, they may accept malformed or truncated UTF-8 byte sequences, silently rewriting them into...

CVE-2026-107169 M17n-lib: null-pointer write in read_mtext_element() on malformed utf-8

A flaw was found in m17n-lib. An attacker could provide specially crafted or truncated UTF-8 input to trigger an unhandled null pointer dereference during text processing. This issue causes the application to crash unexpectedly, resulting in a Denial of Service DoS...

CVE-2026-106122 RabbitMQ: Malformed UTF-8 in shortstr properties permanently disables RPC consumers

The RabbitMQ Java client library allows Java and JVM-based applications to connect to and interact with RabbitMQ nodes. Prior to 5.36.0, ValueReader.readShortstr decodes malformed UTF-8 bytes into replacement characters that can re-encode beyond the AMQP shortstr limit enforced by...

AlmaLinux 9.2 [TuxCare] Security Update: exim / exim-greylist / exim-mon / exim-mysql / exim-pgsql (ALMALINUX9.2:CLSA-2026:1780519410)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1780519410 advisory. - In Exim before 4.99.2, when utf8 operators are enabled, there is an out-of-bounds read if large UTF-8 trailing characters are present...

GHSA-CXF4-7MRP-VVPR Flysystem: WhitespacePathNormalizer's control-character (CorruptedPathDetected) check is bypassed by malformed UTF-8 in the path, affecting every adapter

Related public issue context, not a duplicate Closed issue 1429 "Handle non-UTF-8 paths", 2024-03-24 raised exactly this general concern and even suggested detection via pregmatch'//u', $path !== 1 -- note the reporter's suggested check explicitly compares !== 1, which would correctly treat PCRE'...

Flysystem: WhitespacePathNormalizer's control-character (CorruptedPathDetected) check is bypassed by malformed UTF-8 in the path, affecting every adapter

Related public issue context, not a duplicate Closed issue 1429 "Handle non-UTF-8 paths", 2024-03-24 raised exactly this general concern and even suggested detection via pregmatch'//u', $path !== 1 -- note the reporter's suggested check explicitly compares !== 1, which would correctly treat PCRE'...

CVE-2026-102601

The Flysystem PHP file storage library is vulnerable in versions prior to 3.35.3 due to a flaw in the WhitespacePathNormalizer component. The root cause is that preg_match with the u modifier treats false (returned during malformed UTF-8 input) as falsy, allowing paths containing control characte...

CVE-2026-102601 Flysystem: WhitespacePathNormalizer's control-character (CorruptedPathDetected) check is bypassed by malformed UTF-8 in the path, affecting every adapter

Flysystem is an open source file storage library for PHP. Prior to 3.35.3, the default WhitespacePathNormalizer in src/WhitespacePathNormalizer.php used by Filesystem across adapters calls pregmatch with the u modifier and treats both false and 0 as falsy. A path containing malformed UTF-8 causes...

EUVD-2026-88998

Flysystem is an open source file storage library for PHP. Prior to 3.35.3, the default WhitespacePathNormalizer in src/WhitespacePathNormalizer.php used by Filesystem across adapters calls pregmatch with the u modifier and treats both false and 0 as falsy. A path containing malformed UTF-8 causes...

CVE-2026-102601 Flysystem: WhitespacePathNormalizer's control-character (CorruptedPathDetected) check is bypassed by malformed UTF-8 in the path, affecting every adapter

Flysystem is an open source file storage library for PHP. Prior to 3.35.3, the default WhitespacePathNormalizer in src/WhitespacePathNormalizer.php used by Filesystem across adapters calls pregmatch with the u modifier and treats both false and 0 as falsy. A path containing malformed UTF-8 causes...

PT-2026-102644

Name of the Vulnerable Software and Affected Versions Flysystem versions prior to 3.35.3 Description In the WhitespacePathNormalizer class within src/WhitespacePathNormalizer.php, the normalizePath function uses preg match with the u modifier to detect control characters. When a path contains...