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php-phpseclib vulnerabilities

Vulnerabilities published for php-phpseclib in the last 30 days: 0. Listed in the KEV catalogue: 0.

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Vulnerabilities: 4

  1. CVE-2026-44167

    High · CVSS 7.5EPSS 0.2%No fix published

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

    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.

    Published Updated
  2. CVE-2026-40194

    Low · CVSS 3.7EPSS 0.36%No fix published

    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::get_binary_packet() 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(), which short-circuits on the first differing byte. This is a real variable-time comparison (CWE-208), proven by scaling benchmarks. This vulnerability is fixed in 3.0.51, 2.0.53, and 1.0.28.

    Published Updated
  3. CVE-2026-32935

    High · CVSS 8.2EPSS 0.39%No fix published

    phpseclib's AES-CBC unpadding susceptible to padding oracle timing attack

    phpseclib is a PHP secure communications library. Projects using versions 0.1.1 through 1.0.26, 2.0.0 through 2.0.51, and 3.0.0 through 3.0.49 are vulnerable to a to padding oracle timing attack when using AES in CBC mode. This issue has been fixed in versions 1.0.27, 2.0.52 and 3.0.50.

    Published Updated

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