CVE-2025-40931

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Source
https://cve.org/CVERecord?id=CVE-2025-40931
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-40931.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-40931
Downstream
Published
2026-03-05T02:16:39.960Z
Modified
2026-03-14T12:42:39.968411Z
Severity
  • 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
Summary
[none]
Details

Apache::Session::Generate::MD5 versions through 1.94 for Perl create insecure session id.

Apache::Session::Generate::MD5 generates session ids insecurely. The default session id generator returns a MD5 hash seeded with the built-in rand() function, the epoch time, and the PID. The PID will come from a small set of numbers, and 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. Predicable session ids could allow an attacker to gain access to systems.

References

Affected packages

Git /

Affected ranges

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-40931.json"
unresolved_ranges 
[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "1.94"
            }
        ]
    }
]