CVE-2026-44167: Uncontrolled Resource Consumption

phpseclib is a PHP secure communications library. Prior to 1.0.29, 2.0.54, and 3.0.52, anyone loading untrusted ASN1 files eg. X509 certificates, RSA PKCS8 private or public keys, etc. This is a bypass of CVE-2024-27355. This vulnerability is fixed in 1.0.29, 2.0.54, and 3.0.52...

phpseclib 资源管理错误漏洞

phpseclib is an open-source PHP security communication library developed by phpseclib. Versions prior to 1.0.29, 2.0.54, and 3.0.52 contained a resource management vulnerability. This vulnerability stemmed from an issue where bypassing CVE-2024-27355 was possible when loading untrusted ASN1 files...

GHSA-2F25-PFQ3-C7H8 Phpseclib needs guardrails on large binaryfield integers

Impact Anyone loading untrusted ASN1 files eg. X509 certificates, RSA PKCS8 private or public keys, etc Patches https://github.com/phpseclib/phpseclib/commit/964d78101a70305df33f442f5490f0adb3b7e77f Workarounds No. References...

Phpseclib needs guardrails on large binaryfield integers

Impact Anyone loading untrusted ASN1 files eg. X509 certificates, RSA PKCS8 private or public keys, etc Patches https://github.com/phpseclib/phpseclib/commit/964d78101a70305df33f442f5490f0adb3b7e77f Workarounds No. References...

EUVD-2023-2993

Phpseclib needs guardrails on large binaryfield integers...

EUVD-2024-0951

phpseclib guardrails needed on OID length...

GHSA-F2QX-66WF-WVVX phpseclib guardrails needed on OID length

Impact Any application using that loads untrusted ASN1 files eg. X509 certificates, RSA PKCS8 private or public keys, etc. Patches https://github.com/phpseclib/phpseclib/commit/e32531001b4d62c66c3d824ccef54ffad835eb59 Workarounds No. Resources...

phpseclib: guardrails needed on isPrime and randomPrime

Impact Anyone trying to generate a prime and testing the primality of a number. Patches https://github.com/phpseclib/phpseclib/commit/ad5dbdf2129f5e0fb644637770b7f33de8ca8575 Workarounds Using the GMP extension would probably help, assuming that one has its own guardrails. Resources...

EUVD-2024-0936

phpseclib: guardrails needed on isPrime and randomPrime...

GHSA-2528-JW5Q-WW88 phpseclib: guardrails needed on isPrime and randomPrime

Impact Anyone trying to generate a prime and testing the primality of a number. Patches https://github.com/phpseclib/phpseclib/commit/ad5dbdf2129f5e0fb644637770b7f33de8ca8575 Workarounds Using the GMP extension would probably help, assuming that one has its own guardrails. Resources...

phpseclib has a CVE-2024-27355 mitigation bypass — OID amplification DoS in ASN1::decodeOID()

Impact Anyone loading untrusted ASN1 files eg. X509 certificates, RSA PKCS8 private or public keys, etc Patches https://github.com/phpseclib/phpseclib/commit/d53d2021bcb9f6a04d5d44ec99e6bbef219a71bc Workarounds No. References...

Deserialization of Untrusted Data

Overview phpseclib/phpseclib is a PHP Secure Communications Library - Pure-PHP implementations of RSA, AES, SSH2, SFTP, X.509 etc. Affected versions of this package are vulnerable to Deserialization of Untrusted Data in the decodeOID function. An attacker can cause excessive resource consumption ...

GHSA-3QPQ-R242-JQJ7 phpseclib has a CVE-2024-27355 mitigation bypass — OID amplification DoS in ASN1::decodeOID()

Impact Anyone loading untrusted ASN1 files eg. X509 certificates, RSA PKCS8 private or public keys, etc Patches https://github.com/phpseclib/phpseclib/commit/d53d2021bcb9f6a04d5d44ec99e6bbef219a71bc Workarounds No. References...

CVE-2026-40194

A flaw was found in phpseclib, a PHP secure communications library. This vulnerability involves a timing attack where the comparison of Secure Shell SSH packet integrity checks HMACs takes a variable amount of time. A remote attacker could exploit this timing difference to deduce information abou...

Linux Distros Unpatched Vulnerability : CVE-2026-40194

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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 !=...

Timing Attack

Overview phpseclib/phpseclib is a PHP Secure Communications Library - Pure-PHP implementations of RSA, AES, SSH2, SFTP, X.509 etc. Affected versions of this package are vulnerable to Timing Attack via the getbinarypacket function. An attacker can potentially infer sensitive information about 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,...

DEBIAN-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,...

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,...

UBUNTU-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,...