{"id":"CVE-2025-40933","aliases":["EUVD-2025-29729","GHSA-gvxx-2pm7-7h2r"],"status":"published","title":"Apache::AuthAny::Cookie v0.201 or earlier for Perl generates session ids insecurely","description":"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 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.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-09","score":0.0041,"percentile":0.35565,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-338","CWE-340"],"published":"2025-09-17T14:25:10Z","modified":"2026-09-26T00:10:00Z","products":[{"vendor":"kgoldov","product":"apache::authany"}],"references":[{"url":"https://metacpan.org/release/KGOLDOV/Apache2-AuthAny-0.201/source/lib/Apache2/AuthAny/Cookie.pm"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-40933"},{"url":"https://github.com/advisories/GHSA-gvxx-2pm7-7h2r"}],"sources":{"cve":[{"id":"CVE-2025-40933","title":"Apache::AuthAny::Cookie v0.201 or earlier for Perl generates session ids insecurely","description":"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 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.","status":"published","published":"2025-09-17T14:25:10.826Z","modified":"2025-09-17T17:21:55.927Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"adp"}],"cwes":["CWE-340","CWE-338"],"updated_at":"2026-11-02T14:32:34.434755Z"}],"euvd":[{"id":"EUVD-2025-29729","description":"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 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.","status":"published","published":"2025-09-17T14:25:10Z","modified":"2025-09-17T17:21:55Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"updated_at":"2026-11-02T20:31:42.206486Z"}],"ghsa":[{"id":"GHSA-gvxx-2pm7-7h2r","title":"Apache::AuthAny::Cookie v0.201 or earlier for Perl generates session ids insecurely.\n\nSession ids...","description":"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 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.","status":"published","published":"2025-09-17T15:30:39Z","modified":"2025-09-17T18:32:21Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-338"],"updated_at":"2026-11-02T15:03:38.691888Z"}],"nvd":[{"id":"CVE-2025-40933","description":"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 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.","status":"published","published":"2025-09-17T15:15:42.927Z","modified":"2026-09-26T00:10:00.127Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-338","CWE-340"],"updated_at":"2026-11-02T14:11:29.650057Z"}]}}