CVE-2026-34084 PhpSpreadsheet SSRF and RCE via PHP stream wrappers in IOFactory::load

PhpSpreadsheet is a library for reading and writing spreadsheet files. In versions 1.30.2 and earlier, 2.0.0 through 2.1.14, 2.2.0 through 2.4.3, 3.3.0 through 3.10.3, and 4.0.0 through 5.5.0, when the filename argument to IOFactory::load is user-controlled, an attacker can supply a PHP stream...

PhpSpreadsheet has SSRF/RCE in IOFactory::load when $filename is user controlled

The usage of isfile, used to verify if the $filename is indeed an actual file, by all? Reader implementations inside the helper function File::assertFile is php-wrapper aware, for any php wrappers implementing stat. The 3 wrappers ftp://, phar:// and ssh2.sftp://, all satisfy this requirement - 2...

GHSA-Q4Q6-R8WH-5CGH PhpSpreadsheet has SSRF/RCE in IOFactory::load when $filename is user controlled

The usage of isfile, used to verify if the $filename is indeed an actual file, by all? Reader implementations inside the helper function File::assertFile is php-wrapper aware, for any php wrappers implementing stat. The 3 wrappers ftp://, phar:// and ssh2.sftp://, all satisfy this requirement - 2...

PT-2026-37096

Name of the Vulnerable Software and Affected Versions PhpSpreadsheet versions prior to 1.30.3 PhpSpreadsheet versions 2.0.0 through 2.1.14 PhpSpreadsheet versions 2.2.0 through 2.4.3 PhpSpreadsheet versions 3.3.0 through 3.10.3 PhpSpreadsheet versions 4.0.0 through 5.5.0 Description When the...

CVE-2026-40194

phpseclib is a PHP secure communications library. Starting in 0.1.1 and prior to 3.0.51, 2.0.53, and 1.0.28, phpseclib\Net\SSH2::getbinarypacket uses PHP's != operator to compare a received SSH packet HMAC against the locally computed HMAC. != on equal-length binary strings in PHP uses memcmp,...

EUVD-2026-21597

phpseclib has a variable-time HMAC comparison in SSH2::getbinarypacket using != instead of hashequals...

CVE-2026-40194 phpseclib has a variable-time HMAC comparison in SSH2::get_binary_packet() using != instead of hash_equals()

phpseclib is a PHP secure communications library. Starting in 0.1.1 and prior to 3.0.51, 2.0.53, and 1.0.28, phpseclib\Net\SSH2::getbinarypacket uses PHP's != operator to compare a received SSH packet HMAC against the locally computed HMAC. != on equal-length binary strings in PHP uses memcmp,...

CVE-2026-40194 phpseclib has a variable-time HMAC comparison in SSH2::get_binary_packet() using != instead of hash_equals()

phpseclib is a PHP secure communications library. Starting in 0.1.1 and prior to 3.0.51, 2.0.53, and 1.0.28, phpseclib\Net\SSH2::getbinarypacket uses PHP's != operator to compare a received SSH packet HMAC against the locally computed HMAC. != on equal-length binary strings in PHP uses memcmp,...

Updated trilead-ssh2 packages fix security vulnerabilities

CVE-2023-48795: Fixed prefix truncation breaking ssh channel integrity aka Terrapin Attack...

CVE-2025-70034

A flaw was found in ssh2. This vulnerability, categorized as CWE-1333 Inefficient Regular Expression Complexity, allows a remote attacker to cause a Denial of Service DoS by sending specially crafted input that triggers inefficient processing of regular expressions. This can lead to the affected...

EUVD-2025-208436

An issue pertaining to CWE-1333: Inefficient Regular Expression Complexity 4.19 was discovered in mscdex ssh2 v1.17.0...

CVE-2025-70034

An issue pertaining to CWE-1333: Inefficient Regular Expression Complexity 4.19 was discovered in mscdex ssh2 v1.17.0...

PT-2026-24085

An issue pertaining to CWE-1333: Inefficient Regular Expression Complexity 4.19 was discovered in mscdex ssh2 v1.17.0...

CVE-2025-70034

An issue pertaining to CWE-1333: Inefficient Regular Expression Complexity 4.19 was discovered in mscdex ssh2 v1.17.0...

CVE-2025-70034

An issue pertaining to CWE-1333: Inefficient Regular Expression Complexity 4.19 was discovered in mscdex ssh2 v1.17.0...

CVE-2025-70034

The CVE-2025-70034 issue affects mscdex ssh2 (v1.17.0). Root cause: CWE-1333 (Inefficient Regular Expression Complexity) that can cause a Denial of Service by specially crafted input, leading to unresponsiveness in the affected component. Documented impact is remote DoS with network access; no ex...

CVE-2025-70034

An issue pertaining to CWE-1333: Inefficient Regular Expression Complexity 4.19 was discovered in mscdex ssh2 v1.17.0...

CVE-2020-37166

AbsoluteTelnet 11.12 contains a denial of service vulnerability in the SSH2 username input field that allows local attackers to crash the application. Attackers can overwrite the username field with a 1000-byte buffer, causing the application to become unresponsive and terminate...

CVE-2020-37166

AbsoluteTelnet 11.12 contains a denial of service vulnerability in the SSH2 username input field that allows local attackers to crash the application. Attackers can overwrite the username field with a 1000-byte buffer, causing the application to become unresponsive and terminate...

PT-2026-6832

Name of the Vulnerable Software and Affected Versions AbsoluteTelnet version 11.12 Description The software contains a denial of service issue in the SSH2 username input field. Local attackers can cause the application to crash by overwriting the username field with a 1000-byte buffer, leading to...