Important: php8.5

Issue Overview: The mysqlnd wire protocol parser reads fields out of server packets before checking that the packet still holds enough bytes for them. A malicious or compromised MySQL server can send a truncated packet and make the client read past the end of the packet buffer, which is undefined...

Important: php8.3

Issue Overview: The mysqlnd wire protocol parser reads fields out of server packets before checking that the packet still holds enough bytes for them. A malicious or compromised MySQL server can send a truncated packet and make the client read past the end of the packet buffer, which is undefined...

CentOS Linux 8.5 [TuxCare] Security Update: php / php-bcmath / php-cli / php-common / php-dba / php-dbg / etc Multiple Vulnerabilities (CENTOS8.5:CLSA-2026:1791484612)

The CentOS Linux 8.5 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS8.5:CLSA-2026:1791484612 advisory. - The mysqlnd wire protocol parser reads fields out of server packets before checking that the packet still holds enough bytes for...

Amazon Linux 2 : php (ALASPHP8.2-2026-014)

The version of php installed on the remote host is prior to 8.2.34-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2PHP8.2-2026-014 advisory. The mysqlnd wire protocol parser reads fields out of server packets before checking that the packet still holds enough...

Important: php8.4

Issue Overview: The mysqlnd wire protocol parser reads fields out of server packets before checking that the packet still holds enough bytes for them. A malicious or compromised MySQL server can send a truncated packet and make the client read past the end of the packet buffer, which is undefined...

AlmaLinux 9.2 [TuxCare] Security Update: php / php-bcmath / php-cli / php-common / php-dba / php-dbg / etc Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1791822829)

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1791822829 advisory. - The SOAP HTTP client guards its response buffer growth with a check that relies on signed integer overflow, which is undefined...

CLEANSTART-2026-ZN45327 phar_tar_number() parses the octal size field of a TAR header into a uint32_t with no overflow check

Security vulnerability affects the php package. phartarnumber parses the octal size field of a TAR header into a uint32t with no overflow check...

CentOS Linux 8.4 [TuxCare] Security Update: php / php-bcmath / php-cli / php-common / php-dba / php-dbg / etc Multiple Vulnerabilities (CENTOS8.4:CLSA-2026:1791483256)

The CentOS Linux 8.4 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS8.4:CLSA-2026:1791483256 advisory. - The mysqlnd wire protocol parser reads fields out of server packets before checking that the packet still holds enough bytes for...

AlmaLinux 9.6 [TuxCare] Security Update: php / php-bcmath / php-cli / php-common / php-dba / php-dbg / etc Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1791281631)

The AlmaLinux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1791281631 advisory. - The SOAP HTTP client guards its response buffer growth with a check that relies on signed integer overflow, which is undefined...

BIT-PHP-MIN-2026-6103 Phar TAR phar_tar_number() Integer Overflow - Archive Entry Injection

phartarnumber parses the octal size field of a TAR header into a uint32t with no overflow check. The field is 11 octal digits wide and holds values up to 0x1FFFFFFFF, so a size above 0xFFFFFFFF silently wraps. The parser then skips the wrong number of data blocks and interprets attacker-controlle...

BIT-PHP-2026-6103 Phar TAR phar_tar_number() Integer Overflow - Archive Entry Injection

phartarnumber parses the octal size field of a TAR header into a uint32t with no overflow check. The field is 11 octal digits wide and holds values up to 0x1FFFFFFFF, so a size above 0xFFFFFFFF silently wraps. The parser then skips the wrong number of data blocks and interprets attacker-controlle...

BIT-LIBPHP-2026-6103 Phar TAR phar_tar_number() Integer Overflow - Archive Entry Injection

phartarnumber parses the octal size field of a TAR header into a uint32t with no overflow check. The field is 11 octal digits wide and holds values up to 0x1FFFFFFFF, so a size above 0xFFFFFFFF silently wraps. The parser then skips the wrong number of data blocks and interprets attacker-controlle...

SUSE CVE-2026-6103

phartarnumber parses the octal size field of a TAR header into a uint32t with no overflow check. The field is 11 octal digits wide and holds values up to 0x1FFFFFFFF, so a size above 0xFFFFFFFF silently wraps. The parser then skips the wrong number of data blocks and interprets attacker-controlle...

Updated php package fixes security vulnerabilities

FILTERSANITIZEENCODED does not encode 0xFF IPv6 ACL bypass in FastCGI listen.allowedclients due to partial address comparison Various packet overreads in mysqlnd wire protocol TLS hostname verification falls back to CN after SAN mismatch Heap buffer overflow in phpopensslmatcheswildcardname on...

DEBIAN-CVE-2026-6103

phartarnumber parses the octal size field of a TAR header into a uint32t with no overflow check. The field is 11 octal digits wide and holds values up to 0x1FFFFFFFF, so a size above 0xFFFFFFFF silently wraps. The parser then skips the wrong number of data blocks and interprets attacker-controlle...

AZL-104901 CVE-2026-6103 affecting package php 8.3.33-1

phartarnumber parses the octal size field of a TAR header into a uint32t with no overflow check. The field is 11 octal digits wide and holds values up to 0x1FFFFFFFF, so a size above 0xFFFFFFFF silently wraps. The parser then skips the wrong number of data blocks and interprets attacker-controlle...

CVE-2026-6103

phartarnumber parses the octal size field of a TAR header into a uint32t with no overflow check. The field is 11 octal digits wide and holds values up to 0x1FFFFFFFF, so a size above 0xFFFFFFFF silently wraps. The parser then skips the wrong number of data blocks and interprets attacker-controlle...

UBUNTU-CVE-2026-6103

phartarnumber parses the octal size field of a TAR header into a uint32t with no overflow check. The field is 11 octal digits wide and holds values up to 0x1FFFFFFFF, so a size above 0xFFFFFFFF silently wraps. The parser then skips the wrong number of data blocks and interprets attacker-controlle...

CVE-2026-6103

phartarnumber parses the octal size field of a TAR header into a uint32t with no overflow check. The field is 11 octal digits wide and holds values up to 0x1FFFFFFFF, so a size above 0xFFFFFFFF silently wraps. The parser then skips the wrong number of data blocks and interprets attacker-controlle...

CVE-2026-6103

phartarnumber parses the octal size field of a TAR header into a uint32t with no overflow check. The field is 11 octal digits wide and holds values up to 0x1FFFFFFFF, so a size above 0xFFFFFFFF silently wraps. The parser then skips the wrong number of data blocks and interprets attacker-controlle...