Plack-Middleware-Session before version 0.35 for Perl generates session ids insecurely_CVE-2025-40923

{
    "lastseen": "",
    "description": "Plack-Middleware-Session before version 0.35 for Perl generates session ids insecurely.\n\nThe default session id generator returns a SHA-1 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.\n\nPredicable session ids could allow an attacker to gain access to systems.",
    "published": "2025-07-16T13:05:03.782Z",
    "modified": "2025-07-16T20:48:17.516Z",
    "type": "cve",
    "title": "Plack-Middleware-Session before version 0.35 for Perl generates session ids insecurely",
    "source": "CPANSec",
    "references": "https://metacpan.org/release/MIYAGAWA/Plack-Middleware-Session-0.34/source/lib/Plack/Session/State.pm#L22\nhttps://github.com/plack/Plack-Middleware-Session/pull/52\nhttps://github.com/plack/Plack-Middleware-Session/commit/1fbfbb355e34e7f4b3906f66cf958cedadd2b9be.patch\nhttps://security.metacpan.org/docs/guides/random-data-for-security.html",
    "id": "CVE-2025-40923",
    "bulletinFamily": "",
    "cwe": [
        "CWE-340",
        "CWE-338"
    ],
    "cvelist": null,
    "sourceData": "MIYAGAWA Plack::Middleware::Session 0.01",
    "sourceHref": "",
    "cvss": {
        "score": 7.3,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Plack::Middleware::Session",
    "version": "0.01",
    "vendor": "MIYAGAWA",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}