{"id":"CVE-2025-40933","title":"Apache::AuthAny::Cookie v0.201 or earlier for Perl generates session ids insecurely.\n\nSession ids are generated using an MD5 hash of the epoch time and a call to the built-in rand function","summary":"Apache::AuthAny::Cookie v0.201 or earlier for Perl generates session ids insecurely.\n\nSession ids are generated using an MD5 hash of the epoch time and a call to the built-in rand function. The epoch time may be guessed, if it is not lea…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","cwe":["CWE-338","CWE-340"],"published":"2025-09-17","updated":"2026-09-26","sourceUpdated":"2026-09-26T00:10:00.127","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-40933","references":[{"url":"https://metacpan.org/release/KGOLDOV/Apache2-AuthAny-0.201/source/lib/Apache2/AuthAny/Cookie.pm","label":"9b29abf9-4ab0-4765-b253-1875cd9b441e"}],"tags":["nvd"],"epss":0.0041,"epssPercentile":0.3254,"ingestedAt":"2026-09-26T00:22:39.930Z","slug":"CVE-2025-40933","body":"## Overview\n\nApache::AuthAny::Cookie v0.201 or earlier for Perl generates session ids insecurely.\n\nSession ids are generated using an MD5 hash of the epoch time and a call to the built-in rand function. The epoch time may be guessed, if it is not leaked from the HTTP Date header. The built-in rand function is unsuitable for cryptographic usage.\n\nPredicable session ids could allow an attacker to gain access to systems.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}