CVE-2025-40925

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Source

https://cve.org/CVERecord?id=CVE-2025-40925

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-40925.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2025-40925

Published

2025-09-20T12:31:34.353Z

Modified

2026-07-15T01:48:54.314756990Z

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

Starch versions 0.14 and earlier generate session ids insecurely

Details

Starch versions 0.14 and earlier generate session ids insecurely.

The default session id generator returns a SHA-1 hash seeded with a counter, the epoch time, the built-in rand function, the PID, and internal Perl reference addresses. 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.

Database specific

{
    "cwe_ids": [
        "CWE-338",
        "CWE-340"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/40xxx/CVE-2025-40925.json",
    "cna_assigner": "CPANSec"
}

References

Affected packages

Git / github.com/bluefeet/starch

Affected ranges

Type

GIT

Repo

https://github.com/bluefeet/starch

Events

Introduced

f8322382a6e85249bd8f791165121a559813554e

Fixed

5573449e64e0660f7ee209d1eab5881d4ccbee3b

Database specific

{
    "extracted_events": [
        {
            "introduced": "0.01"
        },
        {
            "last_affected": "0.14"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-40925.json"