CVE-2025-40925 – Apache Starch Insecure Session ID Generation

CVE ID : CVE-2025-40925

Published : Sept. 20, 2025, 3:09 p.m. | 1 hour, 57 minutes ago

Description : 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.

Severity: 0.0 | NA

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