| ID | CVE-2026-40194 | ||||||
| Sažetak | phpseclib is a PHP secure communications library. 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. | ||||||
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| CVSS vektor | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N | ||||||
| Zadnje važnije ažuriranje | 10-04-2026 - 21:16 | ||||||
| Objavljeno | 10-04-2026 - 21:16 |
