CVE-2025-40932CWE-338CWE-340

Apache::SessionX versions through 2.01 for Perl create insecure session id

High · published February 26, 2026

CVSS v3.1
8.2
EPSS
0%
Percentile
11.0
In the wild
Unconfirmed
What it is

Apache::SessionX versions through 2.01 for Perl create insecure session id.

Apache::SessionX generates session ids insecurely. The default session id generator in Apache::SessionX::Generate::MD5 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.

The record
Technical detail
CVSS v3.1
8.2 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00212 · 11.0th percentile
Weaknesses
CWE-338 · Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG); CWE-340 · Generation of Predictable Numbers or Identifiers
Published
2026-02-26T23:33Z
EPSS history
Timeline
  • 26 FEB 23:33Z
    Apache::SessionX versions through 2.01 for Perl create insecure session id
    cvelistv5