phpseclib 関連製品全体の CVE とセキュリティ脆弱性情報を集約し、CVSS、EPSS、公開日、脆弱性情報データを掲載しています。
過去の問題は主に vendor risk denial of service などに関し、一部は アプリケーションクラッシュ を招き、vendor surface production workloads and vendor surface software deployment 関連の場面に影響します。
掲載データは公開脆弱性情報とセキュリティ公告に基づき、過去の暴露面と修補優先度の評価に利用できます。
| CVE | 概要 | ソース | CVSS 最大値 | EPSS（%） | 公開 | 更新 |
|---|---|---|---|---|---|---|
| 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::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. | [email protected] | 3.7 | 0.01% | 2026-04-10 | 2026-05-08 |
| CVE-2026-32935 | 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. | [email protected] | 8.2 | 0.01% | 2026-03-20 | 2026-05-08 |
| CVE-2023-52892 | In phpseclib before 1.0.22, 2.x before 2.0.46, and 3.x before 3.0.33, some characters in Subject Alternative Name fields in TLS certificates are incorrectly allowed to have a special meaning in regular expressions (such as a + wildcard), leading to name confusion in X.509 certificate host verification. | [email protected] | 7.5 | 0.18% | 2024-06-27 | 2025-10-22 |
| CVE-2024-27355 | An issue was discovered in phpseclib 1.x before 1.0.23, 2.x before 2.0.47, and 3.x before 3.0.36. When processing the ASN.1 object identifier of a certificate, a sub identifier may be provided that leads to a denial of service (CPU consumption for decodeOID). | [email protected] | 7.5 | 0.44% | 2024-03-01 | 2025-09-15 |
| CVE-2024-27354 | An issue was discovered in phpseclib 1.x before 1.0.23, 2.x before 2.0.47, and 3.x before 3.0.36. An attacker can construct a malformed certificate containing an extremely large prime to cause a denial of service (CPU consumption for an isPrime primality check). NOTE: this issue was introduced when attempting to fix CVE-2023-27560. | [email protected] | 7.5 | 0.15% | 2024-03-01 | 2025-09-15 |
| CVE-2023-49316 | In Math/BinaryField.php in phpseclib 3 before 3.0.34, excessively large degrees can lead to a denial of service. | [email protected] | 7.5 | 0.15% | 2023-11-27 | 2024-11-21 |
| CVE-2023-27560 | Math/PrimeField.php in phpseclib 3.x before 3.0.19 has an infinite loop with composite primefields. | [email protected] | 7.5 | 0.27% | 2023-03-03 | 2025-03-06 |
| CVE-2021-30130 | phpseclib before 2.0.31 and 3.x before 3.0.7 mishandles RSA PKCS#1 v1.5 signature verification. | [email protected] | 7.5 | 0.20% | 2021-04-06 | 2024-11-21 |