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
2025-09-20T12:31:34Z
Modified
2026-10-21T02:53:49Z
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 
{
    "cna_assigner":  "CPANSec",
    "cwe_ids":  [
        "CWE-338",
        "CWE-340"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/40xxx/CVE-2025-40925.json"
}
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
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0.01"
                },
                {
                    "last_affected":  "0.14"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StandardRange"
        },
        {
            "range":  [
                {
                    "fixed":  "5573449e64e0660f7ee209d1eab5881d4ccbee3b"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        }
    ]
}

Database specific

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